New Delhi, March 10 -- The weekend began on a cheerful note for these Bollywood celebs who were seen at a club in Mumbai on Friday evening. As they let their hair down, the paps went clicking, giving us a peek into the chill vibe that ruled the do. Among those who were seen included actors Akshay Kumar, Priyanka Chopra, Sonakshi Sinha and Huma Qureshi....