OK lets Put it this way (im sure you and likes of you are going to give me a -ve rating for this answer but i dont care)
1. unlike your all metal alloy body joint fighter Tejas on the other hand in 45% in body & 99% in skin ara made of Radar waves cheating & highly mantainece free 4th gen garade Carbon Composites aerospace materials
2. Unlike your Joint Fighter which has analog fly by wire that too in twin axis Teajas has Digital Fly By Wire and that too in quadruple Axis
3. Unlike your Joint Fighter which still does not have a desgnated Laser designation Pod for Laserr Guided Bombs & PGM dinpensation or recce Tejas Has LITENING 3 G3 tested and intigrated even in MK1 Format which your Joint fighter hopes to get in its BLk 3 version
4. Your Joint Fighter does not have a proper HOBS meaning High Off Bore Sight targetting and misslie lock aquisition capability nor dose 3rd or even 4th gen HMDS or HUD or contemprarry WVR while TejasMK1 now have Dash3 HMDS & HUD with Python5 WVR (all axis 90 degree + HOBS)while MK1A is already testing next gen with twin coloured JHMCS & HUD with Multi Seeker head elebelled next gen Python WVR with more range whith all aspect 360degrees HOBS
5.your Joint Fighter does not have right now adequate Radar so it hopes to get an AESA while Tejas MK1 has same Radar & BVR combo as that on outgoing Israeli F16 SUFA that it EL-M/2032 MMR with DERBY (80km) & I Derby ER (125km)
6.Your Joint Fighter has to carry Oxygen cylinders with pilots in flight which both are security risks and rstrics flight time while LCA even in MK1 format has OBOGS & IFR tested and intigrated
now
@Dazzler sir i have not even talked about GaN AESA based Unified and minutrised avionics & EW+ECM + Jammer suite on MK1A and thats coming all with 550Kgs lessser wieght and more better aero dynamics and its already in testing and 83 are already on order
so it that is not 4th gen edge nothing is and ive not told you about AWACS & ground and aerostat based poweress india possess forget the spy sattelite network and what india will do with help of US with US weapons in PAF & PA kitty in times of WAR