Hello Aspirant,

The top colleges offering Btech computer science engineering in south India are

Indian Institute of Technology Madras (IIT M) - ranked no. 1 engineering college in India by NIRF

Indian Institute of Technology Hyderabad (IIT H), Telengana

Kalasalingam Academy of Research and Education, Tamil Nadu

NIT, Trichy

National Institute of Technology Karnataka (NIT K)

Vellore institute of technology (VIT), Vellore

National Institute of Technology, Warangal, Telengana

National Institute of Technology, Calicut, Kerala

Hindustan Institute of Technology and science (HITS), Chennai

Hope this helps and Good luck