diff --git a/telethon/client/messages.py b/telethon/client/messages.py
index 16a2b3d7..7a4d5b1f 100644
--- a/telethon/client/messages.py
+++ b/telethon/client/messages.py
@@ -634,6 +634,7 @@ class MessageMethods:
             file: 'typing.Union[hints.FileLike, typing.Sequence[hints.FileLike]]' = None,
             thumb: 'hints.FileLike' = None,
             force_document: bool = False,
+            topic_id: int = None,
             clear_draft: bool = False,
             buttons: typing.Optional['hints.MarkupLike'] = None,
             silent: bool = None,
@@ -675,6 +676,9 @@ class MessageMethods:
                 Whether to reply to a message or not. If an integer is provided,
                 it should be the ID of the message that it should reply to.
 
+            topic_id (`int`, optional):
+                Whether to send message in topic forum, It should be ID of topic forum.
+
             attributes (`list`, optional):
                 Optional attributes that override the inferred ones, like
                 :tl:`DocumentAttributeFilename` and so on.
@@ -821,7 +825,8 @@ class MessageMethods:
                 buttons=buttons, clear_draft=clear_draft, silent=silent,
                 schedule=schedule, supports_streaming=supports_streaming,
                 formatting_entities=formatting_entities,
-                comment_to=comment_to, background=background
+                comment_to=comment_to, background=background,
+                topic_id=topic_id
             )
 
         entity = await self.get_input_entity(entity)
@@ -846,6 +851,7 @@ class MessageMethods:
                     silent=silent,
                     background=background,
                     reply_to=reply_to,
+                    topic_id=topic_id,
                     buttons=markup,
                     formatting_entities=message.entities,
                     parse_mode=None,  # explicitly disable parse_mode to force using even empty formatting_entities
@@ -856,6 +862,7 @@ class MessageMethods:
                 peer=entity,
                 message=message.message or '',
                 silent=silent,
+                top_msg_id=topic_id,
                 background=background,
                 reply_to_msg_id=utils.get_message_id(reply_to),
                 reply_markup=markup,
@@ -878,6 +885,7 @@ class MessageMethods:
                 peer=entity,
                 message=message,
                 entities=formatting_entities,
+                top_msg_id=topic_id,
                 no_webpage=not link_preview,
                 reply_to_msg_id=utils.get_message_id(reply_to),
                 clear_draft=clear_draft,
@@ -912,6 +920,7 @@ class MessageMethods:
             messages: 'typing.Union[hints.MessageIDLike, typing.Sequence[hints.MessageIDLike]]',
             from_peer: 'hints.EntityLike' = None,
             *,
+            topic_id: int = None,
             background: bool = None,
             with_my_score: bool = None,
             silent: bool = None,
@@ -940,6 +949,9 @@ class MessageMethods:
                 order for the forward to work. This parameter indicates
                 the entity from which the messages should be forwarded.
 
+            topic_id (`int`, optional):
+                Whether to forward message in topic forum, It should be ID of topic forum.
+
             silent (`bool`, optional):
                 Whether the message should notify people with sound or not.
                 Defaults to `False` (send with a notification sound unless
@@ -1025,6 +1037,7 @@ class MessageMethods:
                 from_peer=chat,
                 id=chunk,
                 to_peer=entity,
+                top_msg_id=topic_id,
                 silent=silent,
                 background=background,
                 with_my_score=with_my_score,
diff --git a/telethon/client/uploads.py b/telethon/client/uploads.py
index a27d2895..4f9a7768 100644
--- a/telethon/client/uploads.py
+++ b/telethon/client/uploads.py
@@ -101,6 +101,7 @@ class UploadMethods:
             force_document: bool = False,
             file_size: int = None,
             clear_draft: bool = False,
+            topic_id: int = None,
             progress_callback: 'hints.ProgressCallback' = None,
             reply_to: 'hints.MessageIDLike' = None,
             attributes: 'typing.Sequence[types.TypeDocumentAttribute]' = None,
@@ -201,6 +202,9 @@ class UploadMethods:
             reply_to (`int` | `Message <telethon.tl.custom.message.Message>`):
                 Same as `reply_to` from `send_message`.
 
+            topic_id (`int`, optional):
+                Whether to send message in topic forum, It should be ID of topic forum.
+
             attributes (`list`, optional):
                 Optional attributes that override the inferred ones, like
                 :tl:`DocumentAttributeFilename` and so on.
@@ -365,6 +369,7 @@ class UploadMethods:
                     parse_mode=parse_mode, silent=silent, schedule=schedule,
                     supports_streaming=supports_streaming, clear_draft=clear_draft,
                     force_document=force_document, background=background,
+                    topic_id=topic_id
                 )
                 file = file[10:]
                 captions = captions[10:]
@@ -378,6 +383,7 @@ class UploadMethods:
                     video_note=video_note, buttons=buttons, silent=silent,
                     supports_streaming=supports_streaming, schedule=schedule,
                     clear_draft=clear_draft, background=background,
+                    topic_id=topic_id,
                     **kwargs
                 ))
 
@@ -407,7 +413,7 @@ class UploadMethods:
             entity, media, reply_to_msg_id=reply_to, message=caption,
             entities=msg_entities, reply_markup=markup, silent=silent,
             schedule_date=schedule, clear_draft=clear_draft,
-            background=background
+            background=background, top_msg_id=topic_id
         )
         return self._get_response_message(request, await self(request), entity)
 
@@ -415,7 +421,8 @@ class UploadMethods:
                           progress_callback=None, reply_to=None,
                           parse_mode=(), silent=None, schedule=None,
                           supports_streaming=None, clear_draft=None,
-                          force_document=False, background=None, ttl=None):
+                          force_document=False, background=None, ttl=None,
+                          topic_id=None):
         """Specialized version of .send_file for albums"""
         # We don't care if the user wants to avoid cache, we will use it
         # anyway. Why? The cached version will be exactly the same thing
@@ -475,7 +482,7 @@ class UploadMethods:
         request = functions.messages.SendMultiMediaRequest(
             entity, reply_to_msg_id=reply_to, multi_media=media,
             silent=silent, schedule_date=schedule, clear_draft=clear_draft,
-            background=background
+            background=background, top_msg_id=topic_id
         )
         result = await self(request)
 
diff --git a/telethon/tl/custom/inlineresult.py b/telethon/tl/custom/inlineresult.py
index 15639aa5..5aa310ef 100644
--- a/telethon/tl/custom/inlineresult.py
+++ b/telethon/tl/custom/inlineresult.py
@@ -104,7 +104,7 @@ class InlineResult:
 
     async def click(self, entity=None, reply_to=None, comment_to=None,
                     silent=False, clear_draft=False, hide_via=False,
-                    background=None):
+                    background=None, topic_id=None):
         """
         Clicks this result and sends the associated `message`.
 
@@ -120,6 +120,9 @@ class InlineResult:
                 broadcast channel instead (effectively leaving a "comment to"
                 the specified message).
 
+            topic_id (`int`, optional):
+                Whether to send message in topic forum, It should be ID of topic forum.
+
             silent (`bool`, optional):
                 Whether the message should notify people with sound or not.
                 Defaults to `False` (send with a notification sound unless
@@ -154,6 +157,7 @@ class InlineResult:
             peer=entity,
             query_id=self._query_id,
             id=self.result.id,
+            top_msg_id=topic_id,
             silent=silent,
             background=background,
             clear_draft=clear_draft,