BSE will divest 2.5% stake in the Central Depository Services (India) Ltd (CDSL) through an offer for sale (OFS) route. CDSL, which allows investors to deposit securities by opening a demat account, listed on the NSE in 2017. Through the IPO, BSE, which had 50.05% stake in CDSL, sold 26.05% of its holding to meet SEBI norms.