Crown group, which specialises in defence aerospace maintenance, on Wednesday announced it has entered into a strategic partnership with Russian aircraft corporation MiG for providing post-warranty support to the Indian Navy’s MiG-29K and MiG-29KUB fighter jets. The Delhi-based group in a statement said that one of its companies Aviatech Enterprises Pvt Ltd (AEPL) has entered into a “framework agreement” with joint stock company MiG in this regard.