Sukhwinder Singh, who won the Best Playback Singer (Male) for 'Bismil' was elated for film's performance at the awards.
'Queen' director Vikas Bahl was also present at the party. Bahl's film won Best Hindi film and its leading lady Kangana Ranaut won Best Actress award at the 62nd National Film Awards.
Meghana Gulzar was also present at the 'Haider' success party.
Leading man of 'Haider' Shahid Kapoor was not seen at the bash, though the actor expressed joy on Twitter.
Newly engaged couple, designer Masaba Gupta and producer Madhu Mantena came in together. Mantena is part of Phantom Films which has produced 'Queen' which was the other big winner at this year's National Film Awards.
Leading lady Shraddha Kapoor was all smile at the film's success bash.
'Haider' has lapped up five Nation Awards this year and crew and cast of the film met up recently to celebrate the film's success. Director Vishal Bhardwaj came with his wife Rekha and son. Bhardwaj won Best Music award for the film's beautiful soundtrack.
Actor-filmmaker Amir Bashir, who was part of the cast of 'Haider' at the film's success bash.
The film's producer, Siddharth Roy Kapoor of UTV was also present at the bash.