Hi
Although the Top IITs keep exchanging positions as per different surveys but the tentative list almost remains the same. You can go through the list of top 100 by visiting www.askiitians.com/top_colleges.aspx . I am lising u with top 15 engg. colleges:

    

        

            
Rank
            
Name of the Institute
            
City
        
        

            
1
            
Indian Institute of Technology IIT
            
Mumbai
        
        

            
2
            
Indian Institute of Technology IIT
            
Delhi
        
        

            
3
            
Indian Institute of Technology IIT
            
Kanpur
        
        

            
4
            
Indian Institute of Technology IIT
            
Chennai
        
        

            
5
            
Indian Institute of Technology IIT
            
Kharagpur
        
        

            
6
            
BITS
            
Pilani
        
        

            
7
            
Indian Institute of Technology IIT
            
Roorkee
        
        

            
8
            
NIT - National Institute of Technology
            
Warangal
        
        

            
9
            
Indian Institute of Technology IIT
            
Guwahati
        
        

            
10
            
BIT, Mesra
            
Ranchi
        
        

            
11
            
Jadavpur University, Faculty of Engg & Tech
            
Kolkata
        
        

            
12
            
Indian School of Mines
            
Dhanbad
        
        

            
13
            
NIT - National Institute of Technology
            
Trichy
        
        

            
14
            
Delhi College of Engineering
            
New Delhi
        
        

            
15
            
IIT - BHU 
            

            
Varanasi