hi bro there will be so many exams like jee mains , university exams but jee mains first phase has been completed so you can apply for the jee mains exam in april and if you still want to write the first phase exam of jee mains you acn take long term course and you can definetly write the first phase on jee mains again , but if you dont want to waste your time again by taking long term and you can apply for many university entrances like amrita , LPU, MANIPAL ,SRM and there are also many universities which you can apply for them and they are also the top universities in india and almost equal to IIT's and NIT's in india and hope you will definetly have success in your comming exams and all the best for your bright future bro 

Dear Vignesh

Vignesh not an issue that doesn't matter whether you are from Computer Science group or not but if you have the PCM in your respective Class 12th so you can easily be able to write all the entrance exam which are given below :

• JEE Mains & Advance
• BITSAT
• SRMJEEE
• VITEEE
• Bhartiya Vidya peeth entrance exam
• LPU entrance exam
• Manipal University
• COMEDK
• WBJEE

Since if you are interested to go into the CS field then via counselling you can also be able to opt that respective branch.

All the best