JEE Main Scores

you can get a good college apart from NITs.
Best of luck

below 2 lacs.

yes.
you can get MNNIT IIITA and many more.

yes.
you can get manit Bhopal.

U can compare colleges of Aerospace engg. by using option on shiksha which will give u whole information about the colleges in which u want to took admission and u can also compare colleges.

Jee Main marks doesn't really matter in iit admission but you still have to clear cutoff in order to sit in jee advanced which was around 80 marks out of 360 in 2014. As far as Advanced marks are compared the closing rank was around 850(OBC) category which means 170 marks out of 360 around 47% .But all these stats are from 2014 IIT JEE exam and changes every year.

Hello dearYes there are two ranking in result one is all india level and another one is state level. All india rank is considered in out state college seat allocation and state level rank is considered in home state college seat allocation. Now many other private and government universities get admission through jee mains then they consider both ranks

As you know your perperentage according to cbse is avarage and on 170 in jee main you will lie somewhere in between 25000-30000 so your chances to get a good one with good branch are minimum. But as you say that these are excluded from drawing so rank may vary. Then your chances will increase overall you get a good score.
ALL THE BEST

Hello Siddhant, First check out your rank on shiksha rank predictor and then choose colleges accordingly

ya brother you can.
Best of luck :)