What is meant by Quid pro quo ........

Explanation:

Quid pro quo in Latin stands for "something for something," and is used to describe when two parties engage in a mutual agreement to exchange goods or services. In a quid pro quo agreement one transfer is contingent upon a reciprocal transfer. As a term, quid pro quo is used similarly in business and legal contexts to convey that a good or service has been exchanged for something of equal value.