Bhopal/ Kanpur/ Lucknow/ New Delhi, Nov 12 (ANI): Public sector banks across India called for a day long nationwide strike on Wednesday demanding the long pending increment in the employees' wages. The strike has been called under the banner of an umbrella organisation of banks, United Forum of Bank Union. According to the media reports, much against the 23 per cent wage hike demand by the bank employees, Indian Banks' Association offered an increment of 11 per cent, which led unions to call for a strike. The protesters in New Delhi assembled outside various banks and shouted slogans demanding a revision in their salaries. Expressing resentment, an employee of National Organisation of Bank Workers, Ashwini, said around nine bank unions, 800,000 bank employees and more than 50,000 branches are on strike. The employees have been awaiting their salary revision since November 2012 but are yet to hear an official announcement from the government. Meanwhile in Kanpur city, bank union leader Pradeep Vajpayee said the conditions in which bank employees work are deteriorating.