How can i prepare for interview n solve case studies?

Dear Shubhi,

U haven't mentioned that which industry you wish to enter. But, in general the best way to prepare for any interview is to take care of 2 major aspects: Communication Skills & Overall personality. Make yourself comfortable in communicating with others, specially in English. Practice the best way to introduce yourself, as this is generally asked. Rest know about the company profile, enhance your subject knowledge. Use the most practical approach while solving the case studies.
All the best