Tobacco and gaming stocks fell Monday on reports GST 2.0 may impose a 40% "sin tax" on cigarettes, pan masala, luxury cars, and online gaming. Godfrey Phillips slid 6%, ITC lost 0.8%, VST dipped 0.7%, and Golden Tobacco fell 3%. Nazara dropped 2.4%. Retail sentiment on Stocktwits turned bearish for ITC, Godfrey, and Nazara, while VST saw a bullish shift.