CDSL has a diversified revenue stream, ~36% of the revenue is annuity in nature and ~42% is market-linked (Transaction, IPO/corporate action and KYC). The big opportunity related to demat of ~60K unlisted public companies is unfolding. At current run-rate, it will contribute ~7% to FY20 growth with negligible incremental cost. Transactions charges/KYC revenue will revive with better retail participation and improved market sentiments. New revenue streams like National Academic Depository (NAD) and e-warehouse receipts are future growth drivers. We have moderated our estimates for FY20/21E and now expect revenue/EBIT/PAT to grow at a CAGR of 12/5/6% over FY19-22E. We like CDSL based on its (1) Annuity revenue stream, (2) Cash-rich balance sheet (Net cash of Rs 6.50bn, ~30% of Mcap), (3) Option value and (4) Unlisted opportunity. Risks include regulatory changes, market slowdown and increase in competition. We maintain BUY on CDSL despite revenue and margin miss in 2QFY20. Annual issuer charges (+21% YoY in 6M) is driving growth led by the unlisted opportunity. We value CDSL on SoTP basis by assigning 30x to Sep-21 core profit and adding net cash to arrive at a TP of Rs 286.