Following is how to transfer DBS or POSB to Ayer Bank.
Thanks for sharing, Pote Gyi.

“Mingalarpar! You can transfer money to AYA Bank Account in Myanmar from Singapore by using DBS/POSB bill payment service. Please find attached file for detail steps. After each successful transaction, AYA Bank will credit to the receiver’s account on the next banking day (working day) with the SGDMMK exchange rate (buying rate) of that settlement date. For Bill Payment transaction, we will collect MMK3000/- per transaction regardless of the amount transfer till 31st Mar,2016. Start from 1st April, 2016, AYA Bank will credit to the receiver’s account on the next banking day (working day) with the SGDMMK exchange rate (buying rate) of that transferring date and service charges will be MMK5000/-. Please note that you can make transaction from minimum SGD100 to maximum SGD5000 per transaction. Thank you.”