Hello

Top 50 Indian Government Engineering Institutes are :
Its always difficult to actually rank them :)

RankInstitute_NameWebsite
1IIT MumbaiIIT Bombay  IIT Bombay
2IIT DelhiIndian Institute of Technology Delhi
3IIT KanpurIIT Kanpur
4IIT KharagpurIIT KHARAGPUR
5IIT ChennaiIndian Institute of Technology Madras
6IIT GuwahatiIndian Institute of Technology Guwahati
7IIT RoorkeeIndian Institute of Technology Roorkee
8IT BHU VaranasiIndian Institute of Technology (Banaras Hindu University), Varanasi
9College of Engineering, Anna University ChennaiPage on annauniv.edu
10Indian School of Mines DhanbadIndian School of Mines
11Jadavpur University, Faculty of Engg & Tech CalcuttaPage on jadavpur.edu
12Delhi College of Engineering DCE New Delhiwww.dce.edu
13NIT Trichywww.nitt.edu
14NIT WarangalPage on nitw.ac.in
15NIT Surathkalwww.nitk.ac.in
16Netaji Subhas Institute of Technology New DelhiWelcome to NSIT-HomePage
17IIIT AllahabadIIIT-Allahabad
18Motilal Nehru National Inst. of Technology MNNIT AllahabadHome
19Malviya National Institute of Technology JaipurMalaviya National Institute of Technology
20NIT KurukshetraPage on nitkkr.ac.in
21VNIT NagpurPage on vnitnagpur.ac.in
22Punjab Engineering College PEC Chandigarhwww.pec.ac.in
23Bengal Engg and Science University, Shibpur HowrahIndian Institute of Engineering Science and Techonology, Shibpur
24Mumbai University Inst of Chem Mumbai
25NIT Kozhikodewww.nitc.ac.in
26HBTI Harcourt Butler Technological Institute KanpurHarcourt Butler Technological Institute
27MANIT Bhopal:::MANIT- Maulana Azad National Institute of Technology:::
28SVNIT SuratWelcome to Sardar Vallabhbhai National Institute Technology, Surat...!
29College of Engg, Andhra University, Waltair Vishakhapatnam
30College of Engineering PuneCOEP
31NIT RourkelaNational Institute of Technology Rourkela
32College of Engineering Thiruvananthapuramwww.cet.ac.in
33NIT DurgapurNIT-DURGAPUR :: Home
34Madras Institute of Technology, Anna University ChennaiPage on annauniv.edu
35Alagappa institute of Information Technology Karaikudi-
36Govt College of Technology Coimbatorewww.gct.ac.in
37Model Engineering College, Thrikkakara Kochiwww.mec.ac.in
38Dr BR Ambedkar NIT Jalandharwww.nitj.ac.in
39JNTU Hyderabadwww.jntu.ac.in
40University Institute of Engineering & Technology ChandigarhHome
41Shri GS Institute of Technology & Science IndoreSGSITS- Shri Govindram Seksaria Institute of Technology and Science, Indore
42NIT HamirpurPage on nitham.ac.in
43NIT JamshedpurNIT Jamshedpur
44Osmania University College of Engineering Hyderabadwww.uceou.edu
45Institute of Engineering & Technology LucknowWelcome to Institute of Engineering & Technology, Lucknow ::.
46Laxminarayan Institute of Technology NagpurThe Leading Lit Nagpur Site on the Net
47YMCA Institute of Engineering FaridabadPage on ymcaie.ernet.in
48JNTU KakinadaPage on jntu.ac.in
49SV University Engineering College Tirupatisvuniversity.in
50University College of Engineering, Burla SambalpurPage on uceburla.ac.in

I hope it will help you
Good luck...

Hello Manikumar, can you be more specific what kind of college you are looking for. If you are looking for the best engineering college then obviously they are the IITs with IIT bombay on top. IISc is topped the IIT but it is only for BSc. To check the complete list you can visit NIRF's website. Hope this helps!!