To qualify for JEE main & advanced, candidate is supposed to have minimum 75%aggregate marks in all five subjects appeared from 12th board exam or should be under top 20 percentile.

Since, your score is low you need to reappear for Std.12th in 2018 and score above 75% aggregate marks

To qualify for JEE advanced, candidate is supposed to have minimum 75%aggregate marks in all five subjects appeared from 12th board exam or should be under top 20 percentile.

However, for SC/ST the category is relaxed to 65%.

So, if you dont fall in general category, you are not permitted

Yes you can. To apply for GATE for Mtech studies in IIT, the eligibility criteria states:

'Candidates who are applying must have completed their Bachelor's degree in Engineering/ Technology or Master’s degree (M.Sc.) in any relevant science subject or must be in the final year of the programme.'

So if

For open category,A minimum of 75% aggregate  marks across 5 subjects namely PCM and two languages, is mandatory to be eligible for JEE advanced, the candidate can also be allowed if he is tiop 20 percentile.

For SC/ST , the criteria is relaxed to 65% percent.

Moreover, to qualify for

A minimum of 75% aggregate  marks across 5 subjects namely PCM and two languages, is mandatory to be eligible for JEE advanced, the candidate can also be allowed if he is tiop 20 percentile.

Hence, you are required to manage efectivelyboth JEE and Class 12th board exams.

There are factors

SC cotagary ki minimum Mark

Hello Aspirant ,

As far as I know there is no branch of aerospace engineering in B.tech. There are only six branches of engineering in IIT gandhinagar namely computer science branch, mechanical engineering, metallurgical engineering, electronic and communication engineering ,chemical engineering.

For more information about the cut offs you can

Minimum 75% aggregate in any 12th board is must too qualify for JEE advanced across all 5subjects.

You can give improveemnt exams in any of 5 subjects  again such that your aggregate marks go up above 75%. Yo are given only two attempts for improvement exam i.e. 2017 and 2018.

IIT JAM requires knowledge in depth of your subject. You must have to understand each topic in depth and details. Also, you can refer below given books for your preparation -

IIT JAM M.Sc. Geology by Ajhar Hussain

Trend in Objective Geology by Ausaf Saeed

A Text book of Geology