E-commerce stock FSN ECommerce Ventures has underperformed its competitive stocks Zomato and Paytm i the last 1 year. It further predicted that its fair value estimates for Nykaa's fashion business at different revenue CAGR and operating profit margin assumptions range between Rs 14 and Rs 75. In the September quarter, Nykaa posted a 344 percent year-on-year jump in its September …