India, Nov. 20 -- Shares of Billionbrains Garage Ventures Ltd., the operator of India's largest online broker Groww, fell nearly 10% for a second straight trading session indicating that profit-booking on the stock is still on.

On Thursday, Groww's share price fell as much as 9.09% to Rs.154.48 even as the benchmark Sensex gained 0.2% at the opening bell. The stock pared some losses to trade 5-7% lower.

After a spectacular post-listing rally that saw Groww's share price surge over 90% from its IPO price, the high-flying stock hit a decisive 10% lower circuit on Wednesday, signaling the first major wave of profit booking and revaluation of its aggressive valuation.

Groww's shares, which had listed at a premium, sprinted past major valua...