hello santoshkumar

there are variety of things and courses you can do after your msc . first of all you can apply for phd and go for being a proffesor 

you can do any job in private as well as government sector job

you can give banking and  governments staff selection entrance 

you can be a teacher manager officer etc .

you can even do mtech ,mba , mca etc after msc maths

Hello there, 
Congratulations on becoming a post graduate in mathematics,  it is one of the reputable task to be a post graduate in mathematics.
You can opt either to go for higher studies or to get a job.
What to do after msc depends upon your choice. If you want to pursue higher studies,  opt for M.Phil or Phd,  and on the other hand if you want to get a job,  you can go for various government sector jobs like one in DRDO,  you can try to become a teacher,  you can also opt for civil service exams.
Hope I am clear

After the BSc and MSc in mathematica you can for the PhD progrmas in the good universities or college. Phd is the maximum qualification after MSc in mathematics. So apply for the PhD and have one more degree for the mathematics. Along with that you can also go for the rsearch work and paper publication for your research in standars journals. There are other carrer option than studies as you can have the various job options also. You can join as the data analyst, as a proffessor, in school teacher, loan officer and many more.