JEE Main Scores

Yes, you can try the government colleges of Rajasthan, you might be able to get one there. All the best. :-)

Yes is the only way for undergraduate admission.

Hello Vivek,
As the counselling for seat allotment has begun, I'm giving you the rank oriented answer. Your SC category rank should be below 4000 to get a good course at NIT Bhopal. You may refer the link below for closing and opening ranks:
http://josaa.nic.in/Result/result/OpeningClosingRank.aspx

Hi Sourav,
Please use the college predictor link given below:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

There is as such no cut-off of JEE Mains. Galgotias very easily gives admission.

Hello Ritesh,
You may use the JEE main college predictor given below for knowing the colleges that you can get:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
For previous year stats, refer:
http://josaa.nic.in/Result2016/result/OpeningClosingRank.aspx
You may consider the previous year stats as accurate, as they vary every year. You can get NIT Hamirpur, Jamshedpur, Agartala, Mizoram, etc.

If you want NIT. score around 300+.

SRM modinagar NCR fee is 2.10.

Hello Balu,
Since the cut-off for ST category students for JEE Mains 2017 is 27, you have passed it but the score is not very good. You may use the college predictor for JEE Mains which may suggest some colleges for you:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
But, I think, you may not get a top NIT and have medium chances of getting an NIT.
Mention your ranks also so that I may help you.