SNAP

Hello Geeta,
On this website, you get all the material for CAT or other material for the MBA entrance test. It is a paid website.

Your academics are good. You'll get a good college but if you want best college then go for CAT/GMAT/GRE.

The cutoff goes close to 83. You can have the chance based on your previous academic score.

There are a few sites online that provides you with mock tests of SNAP such as Crack, MBA universe etc. which can be very helpful and I would recommend to take a few other MBA entrance mocks which are available as they follow almost same kind of pattern.

Yes, SNAP is mandatory.

SNAP is for colleges falling under Symbiosis institutes.

Yes, you can appear twice.

First you decide which type of MBA you want to do. Specialised or general. Judicously choose the specializations. Then shortlist top college for that MBA programme for example if MBA in HR then XAVIER. IBS comes under top 50 school but its fees is high. You can explore on other MBA exams like CMAT. Best wishes.