The mandir celebrates Vasant Chaitra Navratras (New year of the Hindu Calendar) in March/April every year on the occasion of the birthday of Lord Rama. The Sharad Navratras, co incidents with Durga Pooja, are celebrated in September/October culminating in Vijay Dasami when Shri Rama alongwith Sita and Lakshmana returned to Ayodhya after completion of 14 years exile. Both are big events for the mandir and celebrated with great enthusiasm and religious fervour. Lakhs of devotees come to the temple to seek the blessings of the Maa.
The celebrations start with Kumbhabhishek i.e. holy bath of Maa Katyayani a few days before the start of the Navratras as per tradition started by Babaji. This is followed by Delhi Darshan when offerings consisting of lehngas/sarees, chunnis, fruits, sweets, garlands and cash are sent to 41 temples, dargahs etc in the city. Similar offerings are sent to 11 mandirs in Himachal Pradesh. During Sharad Navratras, puja materials are sent to 90-100 mandirs in Kulu, Himachal Pradesh in addition to those mentioned above.
Bhatti Pujan i.e. lighting of ovens is done to start the preparation of sweets, savouries and food items required during Navratras.
Among the daily events during Navratras are ceremonies such as Havan, Rudhrabhishek, Durga Saptsati Path, Ramayan Path, Rath Puja, Lungar Puja etc. The Mandir is open round the clock during Navratras.
The Shringar of the deity is done every day at 4 AM and is watched by several devotees. Cultural programmes are held in the Satsang hall throughout the day. Arrangements for Langar(free food and prasad) is made both during the day and in the evening for the devotees. An estimated one lakh devotees take lungar daily.
About 5000 Sewadars (Volunteers) perform duties in the Langar, shoe stand, parking, queuing, security, distribution of prasad etc during every Navratra.