ADA
paid Dassault for help developing an
improved Dassault Mirage 2000 back in the 1980’s, to replace the ageing Mig-21 fleet, the resulting Light Combat Aircraft (LCA) design became known as the
HAL Tejas.
The design and sourcing of systems is/was all above board, as Dassault were
paid, as are/were GE, Rafael, Sextant, Martin-Baker, Elbit, Cobham, …, HAL, so most technologies were properly licenced, so minimal plagiarism.
FYI: Flight International (24 Oct 1987) states Dassault-Breguet were contracted to supply 30 top flight engineers to ADA, for $100m ($218.5m in 2017). To aid in the initial design and system integration phases, with GE selected to supply F404-F2J3 engines for the prototypes.
https://books.google.co.uk/books?dq...PA173#v=onepage&q=dassault 1986 india&f=false
Open your eyes, and get some knowledge.