Shares of newly-listed PhysicsWallah dropped nearly 6% and Lenskart fell about 4% on November 19, indicating potential profit booking after strong initial gains. Experts have voiced concerns over PhysicsWallah's competitive landscape, regulatory uncertainties, and valuation, advising partial profit booking. For Lenskart, despite a weak debut and a sell recommendation from Ambit Capital, some analysts suggest holding for the medium term.