Walsh, who guided India to a historic gold at the Incheon Asian Games, quit his post in a dramatic fashion today astounding one and all.
"It's a serious issue. After learning about the development, I have passed on the instructions to SAI Director General and Secretary Sports to explain the cause of the resignation within 24 hours," Sonowal told PTI.
Asked if he was aware that Walsh had reportedly some tax issues with SAI, Sonowal replied in a negative.
"It was not in my knowledge. Let them submit a report only then we will see what can be done," Sonowal said.
SAI Director General Jiji Thomson said Walsh's resignation has been accepted. He said the Australian never complained to them about any issue.