Which one of the following statement with respect to India Air Force is not correct?

The statement regarding the Chetak helicopter is incorrect because it is of French origin, not Russian. The Chetak is the Indian license-built version of the Aérospatiale Alouette III, a French single-engine turboshaft helicopter [t5][t7][t8]. It was chosen for indigenous manufacture by Hindustan Aeronautics Limited (HAL) to serve the Indian Army, Navy, and Air Force [t9]. In contrast, the other statements are accurate: the Sukhoi Su-30MKI is a twin-engine multi-role fighter of Russian origin [t1][t2]; the Mirage-2000 is a multi-role fighter of French origin (Dassault) [t2][c2]; and the MiG-29 is a twin-engine multi-role fighter of Russian (Soviet) origin [t2][t3]. The Chetak's high-altitude performance and single-engine design made it a staple for Indian operations, but its design lineage is strictly French [t6][t8].

Sources

1. [1] https://en.wikipedia.org/wiki/Sukhoi_Su-30MKI
2. [2] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 39: After Nehru... > Security > p. 791