Patna: The wall of a Rs 389.31 crore dam project in Bihar collapsed on Wednesday during a trial run, 24 hours before its inauguration.

Bihar Chief Minister Nitish Kumar was scheduled to inaugurate the Gateshwar Panth Canal Project, aimed at providing irrigation facilities in the state and neighbouring Jharkhand.

The wall of the canal collapsed when water from the Ganga forcefully hit it after the pump was switched on for trial run at Bateshwarsthan in Bhagalpur district.

The water gushed into Kahalgaon and inundated areas in NTPC township as well some civil areas including residence of Kahalgaon civil judge and sub-judge.

"The proposed programme of the Chief Minister at Bhagalpur on Wednesday has been cancelled due to technical reasons," an official statement said at Patna on Tuesday.

Advertisements were put in newspapers on Wednesday about the inauguration of the project by the CM in presence of Water Resources and Irrigation Minister Rajiv Ranjan Singh Lallan and local Congress MLA Sadanand Singh.

Principal Secretary of Water Resources department Arun Kumar Singh along with Bhagalpur DM and SP are on the spot to supervise measures for draining out water from NTPC township and some civil areas of Kahalgaon, around 3 km from the project site.

"Sandbags are being put to check the flow of water," Arun Singh told reporters.

It's a joint scheme of Bihar and Jharkhand. Under it 18,620 hectares of land in Bhagalpur would get irrigation facility while 4038 hectares of areas in Godda district of Jharkhand would be irrigated, a government brochure on the project said.

The Rs 389.31 crore project has a total irrigation capacity of 27603 hectares out of which 22816 is in Bihar and 4887 hectares in Jharkhand.

Planning Commission had originally approved the project in 1977 at an estimated cost of Rs 13.88 crore. The first administrative approval to the project was provided in 2008 involving a cost of Rs 389.31 crore, the brochure said.

RJD workers burnt an effigy of Kumar and Lallan in Bhagalpur alleging corruption in construction of the project.

(With PTI inputs)