With this percentage, you are not eligible to get seat in NITs, IIITs, GFTIs and IITs even private colleges like BITS, VIT, SRM,MANIPAL (except few campuses) ask for 60% aggregate in PCM so it is advisable to try in Govt colleges of states like IPUCET, MHTCET (AIQ) etc. Also, please be specific which particular state you are from so that I can help you for the same further.

Good Luck!!!