The Tejas uses a Martin Baker ejection seat called the MK16 IN16 GS Tejas. Other notable British-supplied equipment on the Tejas include its air-to-air refuelling probe and quartz radome, supplied by UK-based Cobham.
Very funny joke india. Britain blocked the sale of FA-50 to Argentina and it had a single British component, the ejection seat, Tejas has 3 major British parts. And they think Argentina will be able to buy it, hilarious.
Meanwhile The JF-17 can be sold with no British parts.
Though personally I doubt Argentina will purchase either of these aircraft due to the geopolitics in play.