diff --git a/test/jit/test_custom_operators.py b/test/jit/test_custom_operators.py
index feb3b8eb8fb..cdb973590cb 100644
--- a/test/jit/test_custom_operators.py
+++ b/test/jit/test_custom_operators.py
@@ -50,6 +50,10 @@ class TestCustomOperators(JitTestCase):
         output = torch.ops._test.leaky_relu(torch.tensor([-1.0, 1.0]))
         self.assertEqual(output, torch.tensor([-0.01, 1]))
 
+    def test_only_kwargs(self):
+        output = torch.ops._test.leaky_relu(self=torch.tensor(-1.0))
+        self.assertEqual(output, torch.tensor(-0.01))
+
     def test_passing_too_many_args(self):
         with self.assertRaisesRegexWithHighlight(
             RuntimeError,
@@ -74,6 +78,14 @@ class TestCustomOperators(JitTestCase):
         ):
             torch.ops.aten.type_as(torch.ones(5, 5))
 
+    def test_passing_an_argument_both_as_positional_and_kwarg(self):
+        with self.assertRaisesRegexWithHighlight(
+            RuntimeError,
+            "Argument 'self' specified both as positional and keyword argument",
+            ""
+        ):
+            torch.ops._test.leaky_relu(torch.ones(5), self=torch.ones(5))
+
     def test_passing_unknown_kwargs(self):
         with self.assertRaisesRegexWithHighlight(
             RuntimeError,
diff --git a/test/onnx/test_operators.py b/test/onnx/test_operators.py
index ca69f0fb030..8f2c5c78c7c 100644
--- a/test/onnx/test_operators.py
+++ b/test/onnx/test_operators.py
@@ -724,32 +724,31 @@ class TestOperators(TestCase):
         x = torch.randn(2, 3, 4, requires_grad=True)
         self.assertONNX(lambda x: torch.cumsum(x, dim=1), x, opset_version=11)
 
-# Github Issue: https://github.com/pytorch/pytorch/issues/71095
-#    def test_c2_op(self):
-#        class MyModel(torch.nn.Module):
-#            def __init__(self):
-#                super(MyModel, self).__init__()
-#
-#            def forward(self, scores, bbox_deltas, im_info, anchors):
-#                a, b = torch.ops._caffe2.GenerateProposals(
-#                    (scores), (bbox_deltas), (im_info), (anchors),
-#                    2.0, 6000, 300, 0.7, 16, True, -90, 90, 1.0, True,
-#                )
-#                return a, b
-#
-#        model = MyModel()
-#        A = 4
-#        H = 10
-#        W = 8
-#        img_count = 3
-#        scores = torch.ones(img_count, A, H, W, dtype=torch.float32)
-#        bbox_deltas = torch.linspace(0, 10, steps=img_count * 4 * A * H * W,
-#                                     dtype=torch.float32)
-#        bbox_deltas = bbox_deltas.view(img_count, 4 * A, H, W)
-#        im_info = torch.ones(img_count, 3, dtype=torch.float32)
-#        anchors = torch.ones(A, 4, dtype=torch.float32)
-#        inputs = (scores, bbox_deltas, im_info, anchors)
-#        self.assertONNX(model, inputs, custom_opsets={"org.pytorch._caffe2": 0})
+    def test_c2_op(self):
+        class MyModel(torch.nn.Module):
+            def __init__(self):
+                super(MyModel, self).__init__()
+
+            def forward(self, scores, bbox_deltas, im_info, anchors):
+                a, b = torch.ops._caffe2.GenerateProposals(
+                    (scores), (bbox_deltas), (im_info), (anchors),
+                    2.0, 6000, 300, 0.7, 16, True, -90, 90, 1.0, True,
+                )
+                return a, b
+
+        model = MyModel()
+        A = 4
+        H = 10
+        W = 8
+        img_count = 3
+        scores = torch.ones(img_count, A, H, W, dtype=torch.float32)
+        bbox_deltas = torch.linspace(0, 10, steps=img_count * 4 * A * H * W,
+                                     dtype=torch.float32)
+        bbox_deltas = bbox_deltas.view(img_count, 4 * A, H, W)
+        im_info = torch.ones(img_count, 3, dtype=torch.float32)
+        anchors = torch.ones(A, 4, dtype=torch.float32)
+        inputs = (scores, bbox_deltas, im_info, anchors)
+        self.assertONNX(model, inputs, custom_opsets={"org.pytorch._caffe2": 0})
 
     def test_dict(self):
         class MyModel(torch.nn.Module):
diff --git a/test/test_per_overload_api.py b/test/test_per_overload_api.py
deleted file mode 100644
index e237cc915aa..00000000000
--- a/test/test_per_overload_api.py
+++ /dev/null
@@ -1,63 +0,0 @@
-import torch
-from torch.testing._internal.common_utils import TestCase, run_tests
-import copy
-
-class TestPerOverloadAPI(TestCase):
-    def test_basics_opoverloadpacket(self):
-        # add is ony used as an example here. It is ok to update the test
-        # if the semantics of add are modified in the future.
-        add_packet = torch.ops.aten.add
-
-        # class attributes
-        self.assertEqual(add_packet.op_name, 'add')
-        self.assertEqual(add_packet.qualified_op_name, 'aten.add')
-
-        # callable
-        self.assertEqual(add_packet(torch.tensor(2), torch.tensor(3)), torch.tensor(5))
-
-        # correct module
-        self.assertEqual(add_packet.__module__, add_packet.op.__module__)
-
-        # caching
-        another_add_packet = torch.ops.aten.add
-        self.assertEqual(id(add_packet), id(another_add_packet))
-
-        # deepcopy is a no-op
-        self.assertEqual(id(add_packet), id(copy.deepcopy(add_packet)))
-
-        # pretty print
-        self.assertEqual(str(add_packet), "OpOverloadPacket(op='aten.add')")
-
-        self.assertRaises(AttributeError, lambda: add_packet.foo)
-
-    def test_basics_opoverload(self):
-        add_packet = torch.ops.aten.add
-        add_tensoroverload = add_packet.Tensor
-
-        # class attributes
-        self.assertEqual(add_tensoroverload.name, 'aten.add')
-        self.assertEqual(add_tensoroverload.overload_name, 'Tensor')
-        self.assertEqual(add_tensoroverload.overload_packet, add_packet)
-
-        # deepcopy is a no-op
-        self.assertEqual(id(add_tensoroverload), id(copy.deepcopy(add_tensoroverload)))
-
-        # caching
-        another_add_tensoroverload = torch.ops.aten.add.Tensor
-        self.assertEqual(id(add_tensoroverload), id(another_add_tensoroverload))
-
-        # pretty print
-        self.assertEqual(str(add_tensoroverload), "OpOverload(op='aten.add', overload='Tensor')")
-
-        # callable
-        self.assertEqual(add_tensoroverload(torch.tensor(2), torch.tensor(3)), torch.tensor(5))
-
-        a = torch.tensor(2)
-        b = torch.tensor(0)
-        torch.ops.aten.add.out(a, a, out=b)
-        self.assertEqual(b, torch.tensor(4))
-
-        self.assertRaises(RuntimeError, lambda: add_tensoroverload(a, a, out=b))
-
-if __name__ == '__main__':
-    run_tests()
diff --git a/torch/_C/__init__.pyi.in b/torch/_C/__init__.pyi.in
index efc9323f62c..ccf487bd68d 100644
--- a/torch/_C/__init__.pyi.in
+++ b/torch/_C/__init__.pyi.in
@@ -197,8 +197,6 @@ def _jit_init() -> _bool: ...
 def _jit_flatten(arg: Any) -> Tuple[List[Tensor], IODescriptor]: ...
 def _jit_unflatten(vars: List[Tensor], desc: IODescriptor) -> Any: ...
 def _jit_get_operation(op_name: str) -> Callable: ...
-def _get_operation_overload(op_name: str, op_overload_name: str) -> Callable: ...
-def _get_schema(op_name: str, overload_name: str) -> FunctionSchema: ...
 def _jit_pass_optimize_for_mobile(module: 'torch.jit.ScriptModule',
                                   optimization_blocklist: Set[MobileOptimizerType],
                                   preserved_methods: List[AnyStr]) -> 'torch.jit.ScriptModule': ...
diff --git a/torch/_ops.py b/torch/_ops.py
index a7c44b33f3f..555984d8554 100644
--- a/torch/_ops.py
+++ b/torch/_ops.py
@@ -25,109 +25,6 @@ def dl_open_guard():
     if _SET_GLOBAL_FLAGS:
         sys.setdlopenflags(old_flags)
 
-# Each OpOverload object contains pointer to a a specific operator overload, a pointer to the parent `OpOverloadPacket` object.
-# You can obtain an OpOverload object through attribute query on OpOverloadPacket.
-class OpOverload:
-    def __init__(self, overloadpacket, op, schema):
-        self._op = op
-        self._schema = schema
-        self._overloadpacket = overloadpacket
-
-    # it's a no-op since OpOverload object is immutable and must be unique for a given op overload.
-    def __deepcopy__(self, memo=None):
-        return self
-
-    def __str__(self):
-        return "OpOverload(op='{}.{}', overload='{}')".format(*self._schema.name.split("::"), self.overload_name)
-
-    def __call__(self, *args, **kwargs):
-        return self._op(*args, **kwargs or {})
-
-    def __getattr__(self, key):
-        return getattr(self._op, key)
-
-    # `my_namespace::my_op`
-    @property
-    def name(self):
-        return "{}.{}".format(*self._schema.name.split("::"))
-
-    @property
-    def overload_name(self):
-        return self._schema.overload_name
-
-    @property
-    def overload_packet(self):
-        return self._overloadpacket
-
-    @property
-    def op(self):
-        return self._op
-
-    # TODO: add more methods to expose information about input and output arguments
-
-# OpOverloadPacket class contains pointer to a base unresolved operator that doesn't correspond to a specific operator
-# You can obtain an OpOverload object through attribute query.
-class OpOverloadPacket:
-    def __init__(self, qualified_op_name, op_name, op):
-        # These attributes are accessible on the object through the properties
-        # defined below but are immutable
-        self._qualified_op_name = qualified_op_name
-        self._op_name = op_name
-        self._op = op
-
-    # it's a no-op since OpOverloadPacket object is immutable and must be unique for a given op.
-    def __deepcopy__(self, memo=None):
-        return self
-
-    def __str__(self):
-        return "OpOverloadPacket(op='{}.{}')".format(*self._qualified_op_name.split("::"))
-
-    @property
-    def qualified_op_name(self):
-        return "{}.{}".format(*self._qualified_op_name.split("::"))
-
-    @property
-    def op_name(self):
-        return self._op_name
-
-    @property
-    def op(self):
-        return self._op
-
-    def __getattr__(self, key):
-        # It is not a valid op_name when __file__ is passed in
-        if key == '__file__':
-            return 'torch.ops'
-
-        try:
-            use_key = '' if key == 'default' else key
-            # TODO: disallow access to overloads registered by JIT
-            op_ = torch._C._get_operation_overload(self._qualified_op_name, use_key)
-            schema = torch._C._get_schema(self._qualified_op_name, use_key)
-            overload = OpOverload(self, op_, schema)
-            # cache the overload object
-            setattr(self, key, overload)
-            return overload
-        except RuntimeError:
-            try:
-                # This is added to maintain bc in case the user queries an attribute that exists on `self._op`
-                # which used to be returned before instead of the OpOverloadPacket
-                out = getattr(self._op, key)
-                return out
-            except AttributeError:
-                raise AttributeError("'{}' object has no attribute '{}'".format(str(self), key)) from None
-
-    def __call__(self, *args, **kwargs):
-        # overloading __call__ to ensure torch.ops.foo.bar() is still callable from JIT
-        # We save the function ptr as the `op` attribute on OpOverloadPacket to access it here.
-        return self._op(*args, **kwargs or {})
-
-# Resolution of torch.fn is different from torch.ops.aten.fn
-# torch.fn uses the Python argparser, matches with the appropriate schema, and calls into the unboxed version of the method
-# torch.ops.aten.fn resolution is done via the mechanism defined in JIT. JIT creates a stack of all the overloads and
-# then tries to match the correct one at runtime and always calls into the boxed version of the method
-# Autograd codegen creates VariableType, TracerType, inplace or view type and python bindings
-# Aten codegen generates tensor methods for the the tensor class
 
 # _OpNamespace is a subclass of ModuleType because the torch script
 # allows attribute lookups on modules only. Since we want torch.ops.foo.bar()
@@ -162,20 +59,14 @@ class _OpNamespace(types.ModuleType):
             return 'torch.ops'
         # Get the op `my_namespace::my_op` if available. This will also check
         # for overloads and raise an exception if there are more than one.
-        namespace_name = self.name
-        qualified_op_name = '{}::{}'.format(namespace_name, op_name)
+        qualified_op_name = '{}::{}'.format(self.name, op_name)
         op = torch._C._jit_get_operation(qualified_op_name)
-
         # let the script frontend know that op is identical to the builtin op
         # with qualified_op_name
         torch.jit._builtins._register_builtin(op, qualified_op_name)
-        op.__module__ = self.__module__ + "." + namespace_name
-        opoverloadpacket = OpOverloadPacket(qualified_op_name, op_name, op)
-        opoverloadpacket.__module__ = self.__module__ + "." + namespace_name
-        # cache the opoverloadpacket to ensure that each op corresponds to
-        # a unique OpOverloadPacket object
-        setattr(self, op_name, opoverloadpacket)
-        return opoverloadpacket
+        setattr(self, op_name, op)
+        op.__module__ = self.__module__ + "." + self.name
+        return op
 
 class _Ops(types.ModuleType):
     __file__ = '_ops.py'
diff --git a/torch/ao/quantization/quantization_mappings.py b/torch/ao/quantization/quantization_mappings.py
index 27d8a20e8a8..8bffe0948bd 100644
--- a/torch/ao/quantization/quantization_mappings.py
+++ b/torch/ao/quantization/quantization_mappings.py
@@ -133,11 +133,11 @@ _INCLUDE_QCONFIG_PROPAGATE_LIST : Set[Callable] = {
 # Default mapping from floating point function or torch ops to quantized ops
 # TODO: merge with default static mapping
 DEFAULT_FLOAT_TO_QUANTIZED_OPERATOR_MAPPINGS : Dict[Union[Callable, str], Callable] = {
-    F.elu: torch.ops.quantized.elu,
-    F.hardswish: torch.ops.quantized.hardswish,
-    F.instance_norm: torch.ops.quantized.instance_norm,
-    F.layer_norm: torch.ops.quantized.layer_norm,
-    F.leaky_relu: torch.ops.quantized.leaky_relu,
+    F.elu: torch._ops.ops.quantized.elu,
+    F.hardswish: torch._ops.ops.quantized.hardswish,
+    F.instance_norm: torch._ops.ops.quantized.instance_norm,
+    F.layer_norm: torch._ops.ops.quantized.layer_norm,
+    F.leaky_relu: torch._ops.ops.quantized.leaky_relu,
 }
 
 # mapping from module to output activation post process class
diff --git a/torch/csrc/jit/python/init.cpp b/torch/csrc/jit/python/init.cpp
index 9386dab20f8..925ab21c390 100644
--- a/torch/csrc/jit/python/init.cpp
+++ b/torch/csrc/jit/python/init.cpp
@@ -1293,50 +1293,6 @@ void initJITBindings(PyObject* module) {
           })
       .def("has_storage", &DeserializationStorageContext::hasStorage);
 
-  m.def(
-      "_get_schema",
-      [](const std::string& op_name, const std::string& overload_name) {
-        try {
-          auto symbol = Symbol::fromQualString(op_name);
-          auto operations = getAllOperatorsFor(symbol);
-          for (const auto& op : operations) {
-            if (op->schema().overload_name() == overload_name) {
-              return op->schema();
-            }
-          }
-          throw std::runtime_error("Found no matching schema");
-        } catch (const c10::Error& e) {
-          auto msg = torch::get_cpp_stacktraces_enabled()
-              ? e.what()
-              : e.what_without_backtrace();
-          throw std::runtime_error(msg);
-        }
-      });
-
-  m.def(
-      "_get_operation_overload",
-      [](const std::string& op_name, const std::string& overload_name) {
-        try {
-          auto symbol = Symbol::fromQualString(op_name);
-          auto operations = getAllOperatorsFor(symbol);
-          for (const auto& op : operations) {
-            if (op->schema().overload_name() == overload_name) {
-              auto func =
-                  py::cpp_function([op](py::args args, py::kwargs kwargs) {
-                    return invokeOperatorFromPython({op}, args, kwargs);
-                  });
-              return func;
-            }
-          }
-          throw std::runtime_error("Found no matching operator overload");
-        } catch (const c10::Error& e) {
-          auto msg = torch::get_cpp_stacktraces_enabled()
-              ? e.what()
-              : e.what_without_backtrace();
-          throw std::runtime_error(msg);
-        }
-      });
-
   m.def(
       "_jit_get_operation",
       [](const std::string& op_name) {
@@ -1412,11 +1368,8 @@ void initJITBindings(PyObject* module) {
               py::name(symbol.toUnqualString()),
               py::doc(docstring.str().c_str()));
           return func;
-        } catch (const c10::Error& e) {
-          auto msg = torch::get_cpp_stacktraces_enabled()
-              ? e.what()
-              : e.what_without_backtrace();
-          throw std::runtime_error(msg);
+        } catch (const c10::Error& error) {
+          throw std::runtime_error(error.what_without_backtrace());
         }
       },
       py::arg("qualified_name"));
diff --git a/torch/csrc/jit/python/python_sugared_value.cpp b/torch/csrc/jit/python/python_sugared_value.cpp
index 87ab27a5552..1a4ac0370ac 100644
--- a/torch/csrc/jit/python/python_sugared_value.cpp
+++ b/torch/csrc/jit/python/python_sugared_value.cpp
@@ -1104,13 +1104,6 @@ std::shared_ptr<SugaredValue> toSugaredValue(
     }
   }
 
-  auto opoverloadpacket_type =
-      py::module::import("torch").attr("_ops").attr("OpOverloadPacket");
-  py::bool_ is_overloadpacket = py::isinstance(obj, opoverloadpacket_type);
-  if (is_overloadpacket) {
-    obj = py::getattr(obj, "op");
-  }
-
   bool isRpcAvailable = py::cast<bool>(
       py::module::import("torch.distributed.rpc").attr("is_available")());
 
diff --git a/torch/fx/operator_schemas.py b/torch/fx/operator_schemas.py
index 1e3e02ed7cf..d7ddc3e0360 100644
--- a/torch/fx/operator_schemas.py
+++ b/torch/fx/operator_schemas.py
@@ -7,7 +7,6 @@ import warnings
 from typing import Any, Callable, Dict, List, Optional, Tuple, NamedTuple, cast, TYPE_CHECKING
 from torch._jit_internal import boolean_dispatched
 from ._compatibility import compatibility
-from torch._ops import OpOverloadPacket
 
 if TYPE_CHECKING:
     from .node import Argument
@@ -138,9 +137,6 @@ def get_signature_for_torch_op(op : Callable, return_schemas : bool = False):
     if override:
         return (override, None) if return_schemas else None
 
-    if isinstance(op, OpOverloadPacket):
-        op = op._op
-
     aten_fn = torch.jit._builtins._find_builtin(op)
 
     if aten_fn is None:
diff --git a/torch/jit/_recursive.py b/torch/jit/_recursive.py
index a7efa0832ee..789c10d9dff 100644
--- a/torch/jit/_recursive.py
+++ b/torch/jit/_recursive.py
@@ -265,9 +265,6 @@ def infer_concrete_type_builder(nn_module, share_types=True):
             # Don't re-add anything we already added
             continue
 
-        isoverloadpacket = isinstance(value, torch._ops.OpOverloadPacket)
-        if isoverloadpacket:
-            value = value.op
         # Handle Python function attributes
         if inspect.isfunction(value):
             try:
diff --git a/torch/jit/_script.py b/torch/jit/_script.py
index bc79c416902..9ad8934d55b 100644
--- a/torch/jit/_script.py
+++ b/torch/jit/_script.py
@@ -1270,6 +1270,7 @@ def script(obj, optimize=None, _frames_up=0, _rcb=None,
         return create_script_dict(obj)
     if isinstance(obj, list):
         return create_script_list(obj)
+
     if inspect.isclass(obj):
         qualified_name = _qualified_name(obj)
         # If this type is a `nn.Module` subclass, they probably meant to pass
diff --git a/torch/jit/annotations.py b/torch/jit/annotations.py
index 45d708c6e68..6e6317a0cfe 100644
--- a/torch/jit/annotations.py
+++ b/torch/jit/annotations.py
@@ -23,7 +23,6 @@ if torch.distributed.rpc.is_available():
     from .._jit_internal import RRef, is_rref
     from torch._C import RRefType
 
-from torch._ops import OpOverloadPacket
 
 class Module(object):
     def __init__(self, name, members):
@@ -63,10 +62,7 @@ class EvalEnv(object):
         return getattr(builtins, name, None)
 
 def get_signature(fn, rcb, loc, is_method):
-    if isinstance(fn, OpOverloadPacket):
-        signature = try_real_annotations(fn.op, loc)
-    else:
-        signature = try_real_annotations(fn, loc)
+    signature = try_real_annotations(fn, loc)
     if signature is not None and is_method:
         # If this is a method, then the signature will include a type for
         # `self`, but type comments do not contain a `self`. So strip it
@@ -110,9 +106,6 @@ def is_vararg(the_callable):
 
 
 def get_param_names(fn, n_args):
-    if isinstance(fn, OpOverloadPacket):
-        fn = fn.op
-
     if not is_function_or_method(fn) and hasattr(fn, '__call__') and is_function_or_method(fn.__call__):  # noqa: B004
         # De-sugar calls to classes
         fn = fn.__call__