Shares of capital market-related firms, including Angel One, Central Depository Services (India) Ltd (CDSL) and Motilal Oswal Financial Services, rose up to 7 percent on Tuesday after Finance Minister Nirmala Sitharaman acknowledged concerns raised by foreign portfolio investors (FPIs) and domestic equity market participants over India's taxation regime. The Nifty Capital Markets index gained more than 3 percent, with all its 17 constituents trading in positive territory.