Though both the fighters are Russian origin they have significant third party inputs......let put what i know......

To customer to the selection were proposed both base versions Su-30MK - "Indian", gathered in Irkutsk, and "Chinese", made in Komsomol'sk-on- Amur. But Malaysian armed forces the special version of aircraft on the basis of Indian version. So to the light appeared new version Su-30 with the index "modernized, commercial, Malaysian" ie MKM.

MKM:

TVC engine & digital system of the flight control unchanged
It uses a complete French avionics suite with some Russian inputs
Its HUD & HMS is Russian
The cockpit display systems are French
Display generator and radar processors are Indian
It have French navigation systems
Its radar is Bars PESA powered by Indian computers and software
Its uses a Russian jammer pod, IRST & RWR
French LDP
No HDAF pod
MKI:

Same TVC and digital FCS
It uses complete Israeli and Indian avionics suite
Its HUD is Israeli, HMS is Russian
The cockpit display systems are French
Datalink system Indian
All the computers and software onboard are Indian
Bars PESA powered by Indian RC
It uses Israeli jammer pod, IRST & Indian RWR
It has Indian HADF
Its uses French Navigation systems
It has South African aircraft health monitoring system same as EF Typhoon
India had the option to choose between Israeli, French and Russian systems but Malaysia only can choose from French & Russian systems only. They lack of better Israeli technologies in some areas like AVIONICS, jammer pod, IRST, HUD etc. But French also good but not as Israelis they are the best after USA in this aricraft avionics areas.

Thats why when India signed for Mirage-2000 upgrade deal with Frence, for the first time French will integrate a foreign electronics say Isareli+Indian avionics and jammer pods in the new Mirage with French radar, displays, HMS, navigation systems.
I think in Some areas these four countries dominate....

1. Russia: Overall fighter design, engine, weapons
2. Israel: Avionics, HUD, IRST, Jammer pod, LDP etc
3. French: HMS, Navigation systems, Display systems (MFD).
4. India: Computers for radar, avionics, display systems, RWR and software.

Both the fighters have above mentioned similerities.

Pak Fa is not yet on the market, and if it is true then India will be the first!
even The Russian are procuring SU-35 to its fleet and not Pak Fa

anyone going for the Singapore Airshow?