More than 45 lakh people in 30 out of the total 38 districts of the state have been affected by the calamity in two phases since last month, according to the Disaster Management Department.
Another instance of bridge collapse came to the fore in Bihar on Thursday, making it the 10th such incident to have been reported from the state in just over a fortnight, an official said.
Besides, the department has sought an explanation from officials concerned for the collapse of bridges in East Champaran on June 23 and in Madhubani on June 26.
A siren giving a warning about tsunami erroneously started playing from the Early Warning Dissemination System at Porvorim near Panaji, triggering panic among the local residents, an official said on Thursday.
Villagers suggested that heavy rainfall over the preceding days may have contributed to the collapse, with a surge in Gandaki river potentially weakening the bridge's structure.
The FIR was lodged against food inspector Rajesh Vishwas, Sub-Divisional Officer of Pakhanjore RL Dhivar and Sub-Engineer Chhotelal Dhruv, both from the water resources department, at the Pakhanjore police station based on a complaint of nayab tehsildar (revenue official) of the area, a police official said.
Incessant downpour has triggered landslides and floods in several districts of Arunachal Pradesh.
Thousands of people in Darbhanga, West Champaran and Nalanda districts in Bihar have been affected by floods after rivers flowing through these districts breached their embankments. Floods occurred in Darbhanga and West Champaran districts after breaches developed in the embankments of Kamla Balan and Gandak rivers respectively, while in Nalanda it was due to the overflowing of Panchane river.