A bank officers' body has served a notice to State Bank of India for a two-day nationwide strike, which could hit customer service at its branches on Tuesday and Wednesday, the bank said in a notice in the Economic Times newspaper.

SBI, India's dominant lender, did not specify the reason for the strike called by the All India State Bank Officers Federation, but said conciliatory efforts were being made to avert it.

Although the management of the bank is making efforts to extend skeleton services at the branches/offices, in the event it is not possible to do so, our valuable customers may face inconvenience, it added.

A nationwide bank strike had hit India in August as unions rebelled against proposals to allow more private ownership of state banking behemoths that could threaten jobs and benefits.