Once again the celebration time for Ambanis has come. This time it's the official engagement of Isha Ambani with business tycoon Anand Piramal. The three-day engagement bash has kicked off in Lake Como, Italy. The three day event will continue till September 23. Several Bollywood biggies are expected to join the celebrations. Among the first of the guests to arrive were Anil Kapoor, Priyanka Chopra, Nick Jonas and designer Manish Malhotra.