Katrina Kaif promises her fierce action-packed avatar in the celebrity’s upcoming flick ‘Tiger Zinda Hai’. The Bollywood actress is apparently busy with a gruelling schedule of basic combat training for the film. Katrina Kaif will perform her own stunts in ‘Tiger Zinda Hai’ and may even attend a boot camp to work on her skills. In the past, she has performed a few stunts in films like ‘Dhoom 3’ and ‘Ek Tha Tiger’. However, ‘Tiger Zinda Hai’, the sequel to ‘Ek Tha Tiger’, will be a completely different ballgame. An elaborate set has been erected at the Film City studios in suburban Mumbai, where Salman Khan and Katrina Kaif will start shooting for their action scenes by next month, in the scorching heat of May.