The NRB became ready for this after the recommendations of the financial sector high level coordination committee.
According to the NRB, a committee was being formed to study the financial status of the two banks.
The coordination committee had decided to merge the two government banks by September 6 and further study the problems in the management of rural development banks and their solutions.
Member of the coordination committee and Chairman of the Beema Samiti Professor Dr Phatta Bahadur KC, however, said the merger of the two government banks would take at least three months.
He added that the merger process in the government bank would give moral boost to other financial institutions to opt the merger.
As many as 19 banks and financial institutions have already been merged while a dozen others are in the process.