Should i take a year drop to get into iit.I haven't done any coaching for my first attempt and got all about 161 marks in jee 2011 and 169 in aieee and 88.6% in board.is this a good to join coaching class in kota keeping in mind my family background rs 15000 per month

If you think you are determined enough to study hard and go through jee then do take drop and prepare well with full concentration on jee only

and considering that you scored fairly good without any coaching also predicts better result next time with the aid of coaching

Ofcourse family background matters but considering that clearing jee will alter your life if different way so 1 years hardship is worth it with respect to your future

just keep your priorities straight and work hard