B.Sc Eligibility

Yes,
You can pursue any course after getting Diploma in any course.

Yes, you can apply. Visit the college official website.

Yes, I think you will get seat in B.Sc Agriculture with below INR 7 lacs for 4 years, because your percentage in inter is very good. So, there is full chance that you get seat in your stream in South India.

Yes, you are eligible for B.Sc in hotel management. You can try to get admission, you will get admission. But take admission in a good college so that you get good career opportunities in the future.
Good luck.

It's possible. If you are passionate about this, go for CS and learn interdisciplinary course through online education.

Yes, for the first two years, you have to take courses in Physics, Chemistry, Biology, Mathematics, and Earth Science. I don't think that it's a problem even if you don't have biology in class 12th, the faculty at IISER-Pune is aware of this and are more than capable of accounting for it. Don't be surprised if, at the end of two years, you end up loving biology.

If you are not a bonafide Maharashtrian then you might not be eligible for admission as cut-off goes from 90-95%. If you are Maharashtrian then your percentage may land you in this college.

Yes, you can. Most of the colleges grant admission through the entrance exam . Besides, there are many private colleges that give admission directly, so your marks do not matter.

Hello, You can prepare for IIT JAM Exam by yourself also. IIT JAM is tough, but if you study well, then you can easily crack the exam.
Click here:
http://bit.ly/2LDciKV
to know the complete details regarding IIT JAM Exam.