Know-How Exchange : Student Questions

please help me.. im doing my bba intership. the topic on which i have to make my internship project reads "retail marketing of financial products" and i am covering the following products - credit card, home loan, personal loans. i am working in a DSA which sells the above products among other such products. i have understood the process for each such product, sold them and helped in the back office. now i need to find data and structure it into a project. what i would like you to tell me is what is the best approach for each product and where can i find dada for the same.. specially for personal loans. i am restricting my project to india only.