i am a student in college i got a monthly budget of 6k more than often it happens that i need to buy something or make a purchase that i can afford in coming month but at the moment i cant and so...i need a solution to this issue and ill prefer that it improve my credit score ? i considered to get fd backed credit card and i am a account holder in kotak and sbi considering to shift to idfc since kotak is not issuing any credit card now i am worried since if i invest my money in fd will i be able to use my credit card immediately ? more importantly can i do cash withdrawal?........help me out how should i get started ?