Hello,Bharath

The top B.SC colleges include:

Loyola college 

Madras christian college

Stella Maris college

Guru Nanak college

The new college

Presidency college

The top BCA colleges include:

Madras christian college

Hindustan college of arts and science

SRM institute of science and technology

Loyola college

Hinduatan institute of technology and science

Bharath university

school of computer science

MSCAS

Patrician college of arts and science

St.thomas college of arts and science

Hope your query is answered.