Indian banks do not differentiate between a person with low credential rating and people with good financial records .There are no difference because both pay the same interest. In case, corporate customers are judged on the basis of credit rating given by organizations like CIBIL. Even though those corporates who have higher chance of creating NPA for the banks pay the same rate as individuals (with good record). This is because, in retail lending, Indian banks don’t follow developed countries' practices, where customers are charged differently on the basis of their credit ratings. On the contrary, they don’t give loan below a certain limit. Therefore, any one below that limit is refused of loan so there are no chances of different interest rates.
To read more:
http://www.businessinsider.in/retail-lending-indian-Banks/articleshow/52008213.cms