"The writing on the wall is very clear...They (PSBs) have to think of differential voting rights. It is time to lay out some kind of road map on how much the banks need to do and how much support it would get," she said while talking to reporters on the sidelines of a conference.
The government yesterday allowed PSBs to raise up to Rs 1.60 lakh crore from markets by diluting government holding to 52 per cent in phases so as to meet Basel III norms.
"It is extremely important for India to have 3-4 major banks. ... We should allow the banks to come together and talk among themselves. In the past also we have seen government has forced some mergers...It is very important for the banks to determine who should be their correct partners," she added.
According to Bhattacharya, "it is better to merge good banks with good banks."
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She further said the government has shown its intent to continue with reforms in the banking sector by deciding to bring down its stake to 52 per cent.
"The big daddy back there is not going to be around to give them capital as and when they need. If they need to be competitive and want to grow, then they definitely need to look at other places for more capital," Bhattacharya added.
Out of 27 PSBs, Government of India controls 22 through majority holding. In the remaining 5 banks, state-run SBI holds majority stake.
The norms are aimed at improving risk management and governance while raising the banking sector's ability to absorb financial and economic stress.
As per Basel-III norms, the minimum capital level for Tier-1 has to be 7 per cent.