Help needed over love marriage

First concentrate on your studies.  

Finish your course.

Get a job.

Earn money, then save money.

Build a house for yourself.

Make sure you have enough money in your bank account.

Then think of marriage.

i have completed my mba 
now we want to get married 
becuase i donot want that her parents get any information about it and we will never be able to meet again

You seem to have criminal intentions, which may land you up in sucha situation where you will find yourself behind bars.

If you are confident enough to feed yourself and her, then approach the nearest police station, and tell your plight, they'll get you marriied, which is safe and sound.

Marrying off and turning hostile is not just a bad idea but also would attract the attention of law enforcement authorities.

but will police help us without informing to our parents
we both of us want to get married
should i appraoch to any lawyaer

if you do not have courage to stand marriage better not get married.