India, Oct. 10 -- It has been four days of excruciating wait for 23-year-old Manoj Balmiki whose father Prem Pal Balmiki, a sweeper at the state-run NEEPCO's Kopili hydel project, got trapped with three others in the powerhouse which got flooded as the penstock (pipe) punctured early morning on Monday.

Prempal Balmiki (54) who arrived in Assam from Badaun in Western Uttar Pradesh in early 1980s was on a night shift when he heard a loud sound and rushed downstairs in the powerhouse. Another employee, who was rushing out as he noticed the water gushing in told him to run. "My father perhaps could not hear it properly," Manoj said.

Since then, Manoj has been shuttling between his residence and the 275 MW Kopili hydel project, three kilomet...