One thief steals a chain

Ans plz :
6 Teacher
While going too School
One thief steals a chain
Kannada teacher
Kalla kalla,
Eng teacher
Thief thief,
Hindi teacher
Chor chor,
S.S teacher
Samaj gataka,
Matchs teacher
420 420,
Wat 'Science' teacher screams

Scratch your brain.. answer me..

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Science Teacher Will Scream "My Chain My Chain"
It has to be the Science teachers Chain as there are only 6 teachers