If you use IMPS or UPI to transfer money to this account, then it happens instantly.
NEFT transactions can take upto 2-3 hours.
RTGS transactions can take upto 30 mins.
To add money to this account:
Click on “Bank” (bottom of the screen - this will take you to the savings account screen).
Click on “Add Money”.
You will be able to see your name, account number, and IFSC code for this account. You will need to send money from any of your existing bank accounts (or from someone else’s account) to this account. You can either do this via any bank’s app/net banking (using IMPS/NEFT/RTGS) or using any UPI apps (such as GooglePay or PhonePe).