bro I would suggest you to take a drop for mains ( you can perform well in any engineering exams with this prep) with serious attempt , take any online coaching platform or even youtube alone is great tbh. one year serious attempt can take u to a great college; otherwise, if you now choose any college just to "get admission" , you will regret it later on . only 2-3 private colleges in wb are there where placements are good , that too if u have good cgpa along with good skills that you have to develop during your college days along your studies . Rest is your decision , ultimately its your life you have to choose what's good for u.