i want to know how can we pursue this course after 12th or scope of this course in india?

Look FRM is a specialisation course in Risk Management it is offered by GLOBAL ASSOCIATION OF RISK PROFESSIONALS ( GARP, USA). It is globally recognized certification.
There is no specific eligibility criteria for appearing for FRM. FRM consist of FRM PART 1&2 and 2 years of relevant work experience. You need to have a passing score on the FRM examination, active fellow membership in GRAP and work experience in the area of financial risk or related Fields. And in case you don't have relevant work experience, then you can first appear for FRM 1&2 and on that basis you can get a work experience. GRAP will issues a letter stating candidate has passed the exam and it will be considered as "FRM HOLDER" but not "Certified FRM HOLDER". And once you are done with work experience GRAP will add you as certified.
Exam:
Every year twice this exam takes place i.e in May and November. Once a candidate passes the FRM-1, then he should pass the part-2 within 4 years. Candidates have 5 years from the date they sat and passed the the FRM part-2 to have their work experience certified.
Career and Growth:
All over the world FRM certificate holds value and it is recognized. After you have the certificate you can work as a freelance Financial Risk Manager. Although most of the corporations and investment bankers take FRM. At a global level FRM demand is more. Top employers of FRM includes Financial services firms UBS, Deutsche Bank, HSBC, auditing firms Ernst& Young (EY), PricewaterhouseCoopers (PwC) and KPMG. Remuneration is also quite good.

If you are willing to do this course first set your path straight and simultaneously work on this. Few people do it after MBA and few while they are in the college. As it is very necessary to have work experience and you need to submit your CV to GRAP within 5 years to get certificate.

I hope this helps you.
All the best.

i want to know about frm in detail and that link is not opening?

Which Exam or University application form you are asking?