You can do this as shown in the video below:

Step 1Logon to back office of 

Step 2Click on Subscription Management Portal (SMP) menu in the Client Dashboard

Step 3: Click on Funds Tab and select Fund my SMP ledger

Step 4: Click Debit Card/Credit Card

Step 5 : Enter Amount to transfer and Minimum Transaction is Rs.50 

Step 6 :Enter your details for complete transaction 

If you want to recharge using your trading ledger, see this solution here