I got 150 marks in JEE MAIN 17.I am from OBC-NCL community.What Wii be my AIR & catagary rank? which not i will get .i am from Maharashtra

I hope the following links may help you :
1) JEE Main 2015 College Predictor
2) JEE Main Expected Marks or Rank to take admission in NIT Colleges 2015
3) List of colleges that accept JEE Main scores
4) JEE Main 2015 Participating Institutes

You can also find the closing ranks of various branches of different institutes (category-wise) from CENTRAL SEAT ALLOCATION BOARD( csab.nic.in ) website,for eg. http:// csab.nic.in /csab2014/PDF/Closing_Rank_After_Round_III.pdf

Your expected category rank will be around 5500 and AIR will be around 26,000.

To check which NITs you can get based on your marks/rank you can use below college predictor

JEE Main College Predictor

You can also appear for JEE Advanced to get IITs.

Good Luck!!