IndiGo Airlines and Mahindra Electric Automobile Ltd are set to face off again in the Delhi High Court. The dispute centres on the use of the trademark ‘6E/6e’, which IndiGo claims has long been associated with its brand identity.
No Settlement Reached in Mediation
Talks between IndiGo and Mahindra have failed to reach a settlement. IndiGo has used “6E” as its official airline designator code and across branded services such as 6E Prime and 6E Flex. It alleges Mahindra used the mark unlawfully for its electric vehicle, “BE 6e.”
IndiGo Claims Exclusive Rights to ‘6E’
According to IndiGo, the “6E” mark has been part of its brand since 2006 and is now strongly linked to its services. The airline argues that Mahindra’s use of a similar mark may mislead consumers and infringe upon its established trademark.
Mahindra’s Response and Trademark Dispute
IndiGo earlier filed a trademark infringement case after Mahindra’s “BE 6e” was approved for registration under Class 12, which covers motor vehicles and components. Mahindra has since renamed the car to “BE 6” and pledged not to use “BE 6e” while the case continues.
Court Hearing Set for February 2026
The Delhi High Court will hear the case for admission denial and exhibit marking on February 3, 2026. The outcome will determine whether Mahindra’s modification resolves the dispute or if further legal action will follow.
Broader Trademark Implications
This clash underlines the growing importance of cross-industry brand protection. When companies from different sectors share similar marks, it can cause consumer confusion and legal challenges, as seen in the ongoing IndiGo–Mahindra trademark battle.




