Fast-food giant Subway has sued an India-based company for $8 million, claiming it’s infringing on the chain’s federal trademarks.

In its federal lawsuit filed Friday in Connecticut, Subway, whose national headquarters is in Milford, claims Mobiquest Mobile Technologies PVT LTD is making money by “prominently” displaying Subway markings in its mobile applications. Subway, which has 29,000 restaurants nationwide, states in its 12-page lawsuit that there is an inference of a relationship between the two companies when none exits.