Guide me for UPSC Mains and Prelims please

You are basically confused in Talking the course after You class12th and You would be In future appearing for UPSC. The first Question You should ask Yourself is that IF yOU want to go for UPSC then why You are even Considering Engineering, If You are thinking that You will be on safe side in terms of Job opportunities then You are wrong Just taking an Engineering Degree is Not sufficient Now to grab a Job You must Posses Some skills and If You are Preparing For UPSC then it will be Difficult to manage both so I would Suggest You go for Nornak Degree course It may be a B Sc or BA depending Upon Your Interests.