Where can I get data of 2012 passout students for Diploma in Petro Chemical Engineering?

There is not data avaible but if you want this data then you can go and contact the colleges. The colleges offering Diploma in Petro Chemical Engineering are as follows:

1.U.V.Patel college of engineering
2. Pandit Dindayal Enegy University
3.Parul University, Vadodara
4.Ganpat University, Mehsana