Stakes held by overseas investors, including FIIs, non-resident Indians (NRIs), persons of Indian origin (PIOs), foreign direct investment and global depository receipts, in HDFC Bank have crossed the ceiling of 49 per cent of its paid-up capital, the RBI said in a release.
No further purchases of the bank's shares will be allowed through the stock exchanges on behalf of overseas investors, it said.
FIIs, NRIs and PIOs are allowed to invest in the primary and secondary capital markets through the portfolio investment scheme, under which they can acquire shares and debentures of Indian companies through the stock exchanges.
The RBI monitors the ceilings on FII/NRI/PIO investments in Indian companies on a daily basis.
For effective monitoring of foreign investment ceilings, the RBI has fixed cut-off points that are two percentage points lower than the actual limits.
HDFC Bank shares fell 1.12 per cent to Rs 682.65 at the close on the BSE on Monday.