If a company fails to secure the minimum subscription, then it should :

Issue, within 30 days, a fresh prospectus to raise the amount by which it fell short during the first attempt
Issue a statement in lieu of prospectus, and raise the amount through private sources within a specified period
Return with interest the application money to the applicants within a stipulated period
Seek permission from the SEBI for reentering the capital market

The correct answer is C.

A company that fails to secure the minimum subscription must return the application money to the applicants within a stipulated period. This is as per the Companies Act, 2013. The amount must be returned with interest at the rate of 12% per annum from the date of application till the date of refund.

Option A is incorrect because a company cannot issue a fresh prospectus within 30 days of the first attempt. The Companies Act, 2013, states that a company can issue a fresh prospectus only after a period of 6 months from the date of the first attempt.

Option B is incorrect because a company cannot issue a statement in lieu of prospectus to raise the amount through private sources. The Companies Act, 2013, states that a company can issue a statement in lieu of prospectus only if it is a private company.

Option D is incorrect because a company does not need to seek permission from the SEBI for reentering the capital market. The Companies Act, 2013, does not require a company to seek permission from the SEBI for reentering the capital market.