Consider the following aircraft: 1. Rafael 2. MiG-29 3. Tejas MK-1. How many of the above are considered fifth generation fighter aircraft?

None of the listed aircraft is a fifth-generation fighter. The Rafale (often spelled Rafael in the question) is a 4.5-generation French multirole fighter. The MiG-29 is a fourth-generation Russian air superiority fighter. The Tejas MK-1 is a 4th/4.5-generation Indian light combat aircraft. Fifth-generation fighters are characterized by stealth, advanced avionics, supercruise, sensor fusion, and network-centric capabilities — examples include the F-22 Raptor, F-35 Lightning II, Su-57, and J-20. None of these three Indian/Russian/French aircraft listed qualifies.