Section 5(3)(a) in Competition Commission of India (Procedure in regard to the transaction of business relating to combinations) Regulations, 2011
(a)the parties to the combination are engaged in production, supply, distribution, storage, sale or trade of similar or identical or substitutable goods or provision of similar or identical or substitutable services and the combined market share of the parties to the combination after such combination is more than fifteen percent (15%) in the relevant market ;