Admission to MIT Chennai is on basis of TNEA exam scores. 

Students can also apply with TANCET exam scores for PG Courses only although. 

Based on counselling careied by TNEA authority admissions is based on cutoff trends. 

Cutoffs shared below. 

https://www.careers360.com/colleges/madras-institute-of-technology-chennai/cut-off

Hey Amal

To be Eligible to take admission in JNU for MA in history course you need to have a Bachelor’s Degree in any discipline under 10+2+3 education pattern securing at least 50 percent marks in aggregate of the subjects. Considering this you seem to be eligible after pursuing Btech

Dear Muhsin, 

In order to know which are the PSUs which recruit through GATE, you can check the link that is given below. This will help you to get an idea as to which Public Sector Units take into account the GATE scores for recruitment to different positions. 

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ISI MS in Quantitative Economics selection criteria depends on the two stages the Entrance test & Interview.

The Entrance test:    

For Mathematics You can prefer 10+2 books. You can revise some basic calculus and algebra & statistics you can prfer the distribution, central tendencies and joint distribution as well.You can

hi,

Gate stands for graduate aptitude test in engineering. candidates who are currently studying b.tech course or in final year or pre final year or already completed the b.tech course  are eligible to appear in gate exam. so even of you have backlogs you can appear in gate exam.

based

Hie,

Yes, you can pursue a bachelors degree in mathematics on the fulfilment of eligibility criteria as specified by the college you want to take admission in. But then you need to drop engineering because you can not pursue two regular degree courses at the same time.

All the Best!