Among the additional sponsors of CDSL, the highest stake holder will be Unit Trust of India (UTI) which had picked up equity worth Rs 10 crore. On the other hand, three private sector banks Standard Chartered Bank, Global Trust Bank and Centurion Bank have paid Rs 7.5 crore each to BSE towards their equity.

The Calcutta Stock Exchange Association Ltd and Bank of Maharashtra are the other two new equity partners of CDSL, with a respective share capital of Rs 1 crore and Rs 2 crore. CDSL vice president (operations) Hitendra Patil told The Financial Express that four more institutions Canara Bank, United Western Bank, Union Bank of India and Delhi Stock Exchange have conveyed their willingness to CDSL to pick up stake.

With this, the total number of equity promoters will go upto 16 from the original 5. Patil said the disinvestments of BSE stake in favour of others was initiated about three months ago in an attempt to broadbase the ownership structure of CDSL.

The whole exercise will be over in another two months as the intending promoters are awaiting formal approvals from SEBI (in the case of institutions like UTI) and RBI (in the case of banks), he added.

According to the CDSL's assistant vice president (marketing), Prem J Mariwala was started off with a paid up share capital of Rs 101 crore. BSE had picked up the maximum stake of Rs 66 crore.

The other four original promoters were Bank of India, Bank of Baroda, State Bank of India (Rs 10 crore each) and HDFC Bank Ltd (Rs 5 crore).