Any interrogatories may be set aside on the ground that they have been exhibited unreasonably or vex...........

Civil Procedure Code (CPC) 1908 Judgment and Decree

Any interrogatories may be set-aside on the ground that they have been exhibited unreasonably or vexatiously or struck out on the ground that they are prolix, oppressive, unnecessary or scandalous and any application for this purpose may be made within______ days after service of the interrogatories.

Thirty days