TAMIL 
12 th Tamil unit 1 way to success - click Here 
12 th Tamil unit 1 surya - click Here

English-language

XII English(2019-2020) Unit- 1 Material from WAY TO SUCCESS. Click here
XII - Topper's Star English full Guide & Work Book New (2019-20).pdf. Click Here

Maths

12th UNIT 1 SOLUTION-1.pdf 1 click here
12th UNIT 3  SOLUTION-1.pdf 1 click here
12 Th maths unit 1  way to success E/M - click here 

CHEMISTRY 

chemistry new book unit 1 ANSWER  T/M   BY   S.VISHNU SANKAR M.Sc.MPhil,B.Ed,  -CLICK HERE.
chemistry new book unit 1 solution E/M  BY   S.VISHNU SANKAR M.Sc.MPhil,B.Ed,  CLICK HERE