20. A contract, otherwise proper to be specifically enforced, may be thus enforced, though a sum be named in it as the amount to be paid in case of its breach, and the party in default is willing to pay the same.

Illustration

A contracts to grant B an under-lease of property held by A under C, and that he will apply to C for a license necessary to the validity of the under lease, and that, if the license is not procured, A will pay B taka 10,000. A refuses to apply for the license and offers to pay B the taka 10,000. B is nevertheless entitled to have the contract specifically enforced it C consents to give the license.