Shares of Captain Pipes Ltd surged 10% upper circuit to Rs 726 per share from its previous closing of Rs 660. BSE has approved the issue of 2 bonus shares for 1 equity share held by the company's equity shareholders as of the record date, as well as a stock split of 1 equity share of the company with a face value of Rs 10 into 10 equity shares of the company with a face value of Rs 1 each.