Stocks in news: Delta Corp, Paytm, Delhivery, Mankind Pharma, JSW Steel

Sensex and Nifty hit records. Delta Corp's Q1 profit dips 34% to Rs 40.48 crore from Rs 61.43 crore last year. Paytm's One97 Communications faces labor notice. Bandhan Bank staff seek legal aid. JSW Steel updates production. Delhivery's equity sold by pension board. Hema CIPEF to sell Mankind Pharma stake. RVNL wins Nagpur Metro project. Mahindra cuts XUV700 price.