rupees.

If a person who is required to furnish an information return under section 150 fails to do so within the periodspecified in the notice issuedunder sub-section (3) thereof, the proper officer may direct, that such person shall be · liable to pay a penalty of one hundred rupees for each day of the period during which thefailure to furnish such return continues: Providedthatthe penalty imposed under this section shall not exceedfive thousand rupees.