JEE Scores

SPA-Delhi only accepts JEE score and that too above 250.

Since you are from SC category, you can get a seat if you have a score of 100 and above in JEE Mains. I don't think it's good to drop a year.

No, you can't. They offer admission through NATA.

For qualifying JEE Mains (which means to be eligible for JEE Advanced) the minimum marks are as follows:
IN 2018:
Common Rank List - 74
OBC-NCL - 45
SC - 29
ST -24
IN 2017
Common Rank List-81
OBC-NCL- 49
SC - 32
ST - 27
Cutoffs for admissions in various NITs, IIITs, are available at:
https://josaa.nic.in/josaaorcrarchieve/Result/OpeningClosingRankArchieveN.aspx?Year=2017
Here you can see the cutoff's ranks for various categories.

Hello,
I hope you are doing well. There is nothing any type of scholarship on the basis of JEE main marks. The college offers scholarships to extra meritorious. Their is also TFWS scheme. Also, Scholarship for students who are under sub category of cast. And EBC scheme is available here. There around 30-40% scholarships available in the colleges.

Uttarakhand Technical University will provide admissions to undergraduate engineering programmes based on the ranks/score secured by the candidates in JEE Main 2017. Thus, it is mandatory for aspirants to appear in the national level undergraduate engineering entrance exam. Hence UKTU required JEE marks and rank.

You have to apply through TNEA 2018 for getting Admission in Anna University. There is a different quota for Non-Tamil Nadu State Students. More details about TNEA 2018 is on the link below.
https://www.shiksha.com/university/anna-university/exams/tnea
https://tnea.ac.in/adata/index.php
Apply for TNEA and sit for Counselling. More details are on Anna University's Website.
https://www.annauniv.edu/
You can also call or email them for more details. Number below is contact number of Anna University.
044 2235 1126
All the Best.!

Please follow the link below to know about which colleges are accepting the NCHMJEE. This link will provide you additional information:
https://www.shiksha.com/search/?q=NCHMCT+JEE&qer=nchmct+jee|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0&sa=^0^0^0^0^0^0^0^0^0^0^0^0^0&rf=examAcceptingWidget

More than 150 JEE score is required for food technology admission.

Sorry, you need at least 120 marks in MHTCET to get into the mentioned college's computer science branch in B.Tech . This branch with B.Tech is the best till date an Indian Technical Institute can offer. Kindly move for other better options.
Best of luck.