Firstly you need to determine the department you are interested in. You can choose between branches like CSE, IT, ECE, Mechanical, and EE as per your inclinations.
Apart from scoring more than 50% in your PCM class 12th, you also have to appear in any exam MHT-CET OR JEE Mains. Then You need to apply through DTE’s CAP rounds.
Hope this helps you!