The separate incidents in different parts of Bihar claimed 30 lives including 18 children.
Not just the locals, the festival was observed even by 4000 prisoners and some women belonging to the minority community.
Prison officials said arrangements have been made to facilitate the Puja in all jails, specially four central jails at Muzaffarpur, Patna, Bhagalpur and Buxar.
Plying of boats in the Ganga has also been banned from October 30 to November 3 for the safety of devotees.
The Chhath festival in Bihar is observed by more than 10 crore people who paying obeisance to the sun god during.