This documentation gives you real time experience on PayU Biz APIs you can interact with.
On hitting the API with params, it gives you following:
i). Status code of API.
ii). Response of the API in response body
iv). Schemas of the API
v). CURL request
vi). Error codes with reasons
It is also useful to determine the card’s issuing bank, the card type brand – i.e, Visa, Master etc and also the Card Category – i.e. Credit/Debit etc. Bin number is the first 6 digits of a Credit/Debit card.