Though every superstar in Bollywood is an island unto him self, he/she cannot appear as being asocial. So, aided by a machinery of over-active publicists, advisers, family-members and sycophants, the film industry takes turns to throw parties round the year. The annual Diwali parties thrown by the Bachchans, Aamir Khan and Ekta Kapoor are a constant.

Shah Rukh Khan's (November 2) and Salman Khan's (December 27) birthday parties are marked days in B-Town's calendar. While the producer fraternity goes to pay their respects to these megastars, the heroines go to ensure they are in the actors' minds when they are casting for their next.

The lesser actors mark their presence to ensure their names on the supporting roles roster while some genuine party animals go to simply let their hair down.

Karan Johar has two-to-three dinner parties a month at home. The regulars here are his students - Alia Bhatt, Sidharth Malhotra, Varun Dhawan - the Kapoor sisters - Kareena and Karisma - Kiran Rao and Aamir Khan, Ayan Mukerji with Ranbir Kapoor and Katrina Kaif.

Since Ranbir and Kat moved into their love nest in October, they themselves have thrown at least half-a-dozen dinner parties and one big pre-Christmas bash. Again, the regulars are Karan and Ayan with a combination of people like Vidya Balan, Aditya Roy Kapur, Priyanka Chopra, Aamir and KJo's students.

The Bachchans' Diwali party list includes almost the entire industry, the exceptions being Salman and Vivek Oberoi. And Aamir's list includes most of his long-standing friends like Prasoon Joshi, Indra Kumar, Baba Azmi and the Haji twins - Amin and Karim. At SRK's, the new order is Sonu Sood and Vivaan Shah. And at Salman's farmhouse, be sure to bump into bhai-bhakts Vatsal Seth, Yash Tonk and Aditya Pancholi.

The ones who rarely throw parties and attend them even less frequently are Akshay Kumar and Ajay Devgn. While Akki prefers to switch off his bedroom light at 10.30 pm, Ajay admits that he is plain lazy about socialising. Of course, these two actors do make an exception to honour the Big B's invitation or even travel to Salman's farmhouse for a bash. However, left to themselves, they prefer private time with their kids.