Four Bank Unions have reportedly threatened to go on an indefinite strike from the second week of November, opposing the proposed "merger and amalgamations in the banking sector."

The four organisations -- All India Bank Officers' Confederation (AIBOC), All India Bank Officers' Association (AIBOA), Indian National Bank Officers' Congress (INBOC), National Organization Of Bank Officers (NOBO) have also threatened to go on a two-day strike from September 25 to September 27, ANI reported.