Get latest articles and stories on Latest News at LatestLY. Serum Institute of India (SII) Chief Adar Poonawaalla has picked up a 20 per cent stake in Wakau Interactive, a short-video sharing platform and a subsidiary of JetSynthesys, for an undisclosed amount. Latest News | Adar Poonawalla Picks Up 20 Pc Stake in JetSynthesys' Subsidiary Wakau.