I completed my BE in biomedical engineering from LD College, Gujarat in 2011-2015.
Now I am in MSc in mathematics & scientific computing at NIT-Warangal (2015-2017 batch).
If you are a BE or B.Tech student and want to go in mathematics than it is not much difficult task.
JAM(Joint Admission test for MSc) is very useful for us. If you qualify JAM then you can get admission in IISc, most IITs,
few NITs, and and some CFTIs.
Few IITs have eligibility criteria of requiring BSc with Major.
Most of IITs need only four sem study of mathematics which we generally study in our BE or BTech. (Operations research, Numerical Methods etc… also counts in mathematical subject. Just in case you are worrying if you have studied math only for three sems)
Now if u do Math of BSc level nicely then you should also give CSIR-NET-JRF exam. If you qualify this exam then after BE/BTech no need to do MSc. Directly go for PHd . During your phd from any institute, CSIR will give you Rs 25000(+30% of 25000 as HRA) per month for first two year of phd and 28000 per month afterward for three year.
JAM exam brochure give you all required details…
Other Useful exams are CMI, TIFR, ISI, NBHM, GATE etc…
How to prepare for this exams : See other posts on this blog.
Wish you good luck friends
Also visit below link where you will find some important links