Hello,

With your JEE Mains rank of 6545, you can a seat in many IIITs and many NITs. Coming to the point, with this rank, you can get a seat in IIIT Allahabad with Electronics and Communication engineering. You may also get IT in IIIT Allahabad as IT cutoff at the end of final round was 6364 which is very close to your current rank. You can get Computer Science engineering and Electronics and Communication engineering in IIIT Nagpur. You have chances of getting integrated five year programme in Computer Science Engineering at IIIT Bangalore and integrated five year programme in Electronics and communication engineering at IIIT Bangalore. 

All the best!