Code-switching occurs when two or more languages are used in the same conversation. In Tamil Nadu, people often code-switch between Tamil and English, which is known as "Tanglish." There are several reasons for code-switching, including to express emotion, change topics, or exert control in conversations. There are different types of code-switching, such as tag-switching at the end of a sentence, intra-word switching within a word, intra-sentential switching within a clause or sentence, and inter-sentential switching between clauses or sentences.

2. Code-Switching is one of the
phenomenon of language which occurs
in societies to make the communication
more effective and meaningful.
When two or more languages are in
use in one single conversation side by
side and express an authentic form
from both of th basic language.

3. In linguistics, code switching occurs
when speaker alternates between two
or more languages or language
varieties, in the context of a single
conversation.

4. In Tamilnadu , people use Tamil and
English together which is called as
tanglish to express their point of view
EXAMPLE :
Enaku therila. What happened?
Polam, make it soon.
Avalku adi patturchu, so sad of her la?
Time aachu, shall we make a move?
Why this kolaveri di?
Dress nalla iruku, looking damn cute.

5.  To hide fluency or memory problems in the
second language.
 To mark switching from informal situations to
formal situations.
 To change a topic and stress that by using
and appropriate code.
 To exert control, especially between parents
and children.
 Influence of western culture.
 To express someone’s emotion.

6. TYPES OF CODE
SWITCHING
TAG SWITCHING
INTRA WORD-
SWITCHING
INTRA SENTENTIAL-
SWITCHING
INTER
SENTENTIAL-
SWITCHING

7. TAG-SWITCHING : It occurs at end of a sentence
with question. Example : It is a nice weather,
thaana?
INTRA-WORD SWITCHING : A change occurs
within word. Example: He is samaalchifying.
INTER-SENTENTIAL SWITCHING : When change
takes place at the end of a clause or sentence
and two different sentences will be in two different
languages but topic will be the same. Example :
Romba paesatha. Please stop it.
INTRA SENTENTIAL SWITCHING : A change
occurs within a clause or sentence. Example:
Endha Time ku vara?

8. Hari : Hi sam! Why are you late? Class
appove start aiduchu.
 Sam : Heavy traffic da. Nee epo vandha?
Hari : Traffic is our problem. Somehow ipo
aachum vandhiye . Vaa class polam.
 Sam : Hmm. Let’s go.