how to become a software engineer with 65% in 12th
You can apply for IIT JEE Exam try to score well in the exam. There are many colleges in which you can take admission like DTU & other private colleges except IITs, NITs, IIITs, GFTIs. You can take the branch CSE or IT branch to become a Software Engineer. For other colleges you can go through with given below link.
Colleges accept JEE Main score
Good Luck!