Raise Revenue
Step-by-step explanation:
Raise revenues are such bills which should be originated in the house of representatives , however Senate has given the authority to concur or may propose amendments as on seperate bills.
This clause was basically inserted by the drafting commitee of constitution in order to safeguard the enforcement of Seperation of powers. This clause is applicable to all sort of bills related to revenue rather than only confined to bills fir increasing revenue.