Dear Challa,

Please find below some of colleges that offer engineering in Nanotechnology..

IIT Bombay

NIT Calicut

IISC Bangalore

SRM Chennai

Amity Institute of Nano-Technology (AINT), Noida

Jawaharlal Nehru Center for Advanced Scientific Research (JNCASR), Bangalore

Amrita Centre for Nano Sciences, Kochi

Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), Tamil Nadu.

Hope this helps !