Rule 8(3) of the Companies (CSR Policy) Rules, 2014 mandates following class of companies to
conduct impact assessment: (i) companies with minimum average CSR obligation of Rs. 10 crore
or more in the immediately preceding 3 financial years; and (ii) companies that have CSR
projects with outlays of minimum Rs. 1 crore and which have been completed not less than 1
year before undertaking impact assessment. Impact assessment shall be carried out project-wise
only in cases where both the above conditions are fulfilled. In other cases, it can be taken
up by the company on a voluntary basis.