JEE

U must go for private collages
Eg. Amity

yes of course CS course is best for you

Btec is a best option for you because your preferences is good

wait for jeemains central counselling.

Maharishi Markandeshwar University, Sadopur, Ambala (near Chandigarh), is one of the Top 10 "Emerging Universities of India", as rated in the Survey 2016 by Higher Education Review. A top Institute with World Class Infrastructure,Good placement record and reasonable fee structure. All in All, a good option to explore. Visit www.mmambala.org or contact Toll Free : 1800-3000-5221 for further info.

Please browse below link
https://www.shiksha.com/jee-mains-college-predictor

may in second phase you will get admission

very difficult. you should give cet once more and score atleast 120+

Please refer to below link
https://www.shiksha.com/jee-mains-college-predictor

!Getting in government colleges with this score would be little difficult as their cut-off is little high.There are some premier private institutions that are doing equally good as them .They along with assured placements provides a stage where one can implement technical skills in his projects and research. Here are some of these institutes:
1.BITS
2.VIT
3.Lovely Professional University
Lovely Professional University provides an excellent infrastructure, even the university is having tie-ups with more than 50+ countries providing stage where they can sharpen their skills at most.