|order_id||String||OrderID for which the payment is being started.|
|txn_id||String||Transaction Id for the payment|
|status||String||Status of the transaction. See appendix.|
|payment.authentication.method||String||HTTP Method for authentication. Can be one of GET or POST|
|payment.authentication.url||String||URL to which the user has to be taken to for completing the authentication|
|payment.authentication.params||Params Object||Present only when the method is POST. Parameter map that has to be sent along with the URL for authentication.|
In case of Credit Cards, the charge is real time, so status can be CHARGED or AUTHORISATION_FAILED. In the case of e-mandate (netbanking / aadhaar), this might be PENDING_VBV, for which Merchant should poll after the appropriate time.