Section 31A(2) in The Central Goods and Services Tax Rules, 2017
(2)[ The value of supply of lottery shall be deemed to be 100/128 of the face value of ticket or of the price as notified in the Official Gazette by the Organising State, whichever is higher.Explanation. - For the purposes of this sub-rule, the expression "Organising State" has the same meaning as assigned to it in clause (f) of sub-rule (1) of rule 2 of the Lotteries (Regulation) Rules, 2010.]