The increase in wages would be given to the 4,784 employees of the banks with a minimum hike of Rs 1,630 to a maximum of Rs 15,760 with effect from retrospective effect from January 1, 2011, she said.
Banks in the cooperative sector have been divided into four categories based on their performance and accordingly given varying hike of 21 per cent, 20 per cent, 15 per cent and seven per cent.
The increase had been made as the five-year wage agreement had expired in December 2010, an official release said.