Diploma

Yes, you will get admission for any of the branches with 78.5%. For electrical branch, it is a little bit difficult, but for that also, 60% chances are there.

Hi Chandu,
Yes, of course, you are eligible to take admission in diploma in agriculture engineering. You should apply for the same. Your score in class 10th is good enough to clear the eligibility criteria. Hindi is not taught in diploma courses.
Best of luck.

Hi Rohan,
After completing your Diploma, you need to appear for lateral entry entrance exam for b tech courses in various colleges. Different colleges have different entrance exams. You can apply in the one in which you are interested. You will be given a seat in second year directly after clearing the entrance.
Best of luck.

Almost all the government colleges require you to give some sort of entrance for admission.

Dr S and SS Ghandhy College of Engineering and Technology, Surat
Shree Dhanvantary College of Diploma Engineering, Surat
Shree Tapi Brahmcharyashram Sabha College of Diploma Engineering,. Bhagwan Mahavir Polytechnic, Surat
Mahavir Swami College of Polytechnic, Surat.