S. 260A : Appeal-High Court-Commissioner-Revision of orders prejudicial to revenue-Capital gains-Penny stock companies-Tribunal quashed the revision order and also on merits-Revenue has challenged only on the ground on merits and not against quashing the revision order-Dismissing the appeal the Court held that a piecemeal challenge of the order passed by the Tribunal on one grounds on which relief was granted to assesseee was not maintainable. [S. 10(38), 45, 68, 254(1), 263]