As per your request here I am sharing the list of top diploma engineering colleges in India:

Government Polytechnic , Mumbai

S H Jondhale Polytechnic

V.P.M.'s Polytechnic

Vivekanand Education Society's Polytechnic

Adesh Polytechnic College

Anjuman Polytechnic

Agnel Polytechnic

Chhotu Ram Polytechnic

Adhiparasakthi Polytechnic College

MEI Polytechnic

Government Polytechnic

Ananda Marga Polytechnic

Seth Jai Parkash Polytechnic

A.A.N.M & V.V.R.S.R Polytechnic

AL- Huda Polytechnic

Andhra Polytechnic

Bongaigaon Polytechnic

Bapatla Polytechnic College

Col D.S. Raju Polytechnic

APC Roy Polytechnic

Government Polytechnic Miraj

Government Women Polytechnic College

Kalinga Polytechnic Bhubaneswar

Government Womens Polytechnic

Yamuna Polytechnic for Engineering

T. B. Girwalkar Polytechnic