What Natasha Poonawalla, Tina Ambani And Others Shared On Valentine's Day What Natasha Poonawalla, Tina Ambani And Others Shared On Valentine's Day Valentine's Day 2021: Take a look at what Tina Ambani, Natasha Poonawalla, Kamala Harris shared on V-Day. Natasha Poonawalla with husband Adar Poonawalla On the day of love - Valentine's Day - several celebrities shared sweet V-Day greetings on social media. Valentine's Day is celebrated annually on February 14 and this year it fell on a Sunday. Every year, social media is flooded with love-up posts on this holiday. This time too, thousands of people took to Twitter and Instagram to share adorable Valentine's Day messages for their partners. Among them was Natasha Poonawalla. The 39-year-old businesswoman took to Instagram this morning to post a pic with husband Adar Poonawalla, the CEO of Pune-based Serum Institute of India which is manufacturing Covishield COVID-19 vaccines. "Honest critics and confidants, alternatively good cop and bad cop, partners through thick and thin," she wrote in her "cheesy" Valentine's Day post.