Bilva Niantran is an integral part of Maha Shashti observance, which is conducted on Shashti Tithi while it prevails during Sanyakal. Bilva Nimantran will be conducted between 03:48 PM and 06:12 PM on September 27. The ritual is believed to formally invite Goddess Durga into one’s life and is marked with great fervour and enthusiasm by one and all.