Punjab National Bank , the second-largest public sector bank in India provides several options to check the balance of their customer account. Know about Punjab National Bank account balance check by PNB balance enquiry number, SMS, passbook, ATM, netbanking, mobile banking, missed call and more. What is the PNB Balance Check Number? Punjab National Bank offers a toll-free PNB balance check number through which their customers learn about their current balance in the account. Thus, the PNB bank balance check number is 0120-2303090. You will have to call this number from your mobile number registered with your bank account. Punjab National Bank Balance Check options: Internet & Mobile Banking, SMS, Missed Call, ATMs, Passbook, and Customer Care. Punjab National Bank offers a range of customer enquiry services.