Tax liability on development rights and FSI accrues at completion certificate issuance or first occupation under reverse charge. Notification designates promoters receiving development rights or FSI, or long term lease of land for residential construction on or after 1 April 2019, as liable for State tax. Tax liability on consideration in the form of construction services, monetary consideration, upfront lease amounts (premium, salami, cost, price, development charges or otherwise), and supplies of construction service against development rights/FSI arises on issuance of the completion certificate where required or on first occupation, whichever is earlier.