Alarmed by the damage caused by floods in Uttarakhand, the district authorities on Wednesday announced red alert in 30 villages situated near the banks of river Yamuna and Hindon.
Residents of 30 villages have been asked by the district authorities to be ready to be shifted to another location, sources said.
Arrangements have been made in primary school buildings of the district to provide temporary accommodation to the villagers, they said, adding animal shelter homes have also been identified.
The Yamuna river on Wednesday continued to flow over the danger mark of 207.20 metres - the highest ever since 1978. The water level is further expected to reach 207.7 metres, a government official said.
As the swelled up Yamuna breached its banks, the city's 145-year-old railway bridge had to be shut down, and 2,000 families living along the river banks evacuated to safer places.
According to a Delhi government official, a man was washed away by the strong currents of the Yamuna while he was taking a bath near Majnu Ka Tilla in north Delhi.
The water level has been rising in the Yamuna due to the release of 8.06 lakh cusecs of water from the Hathinikund barrage in Haryana on Monday, and an additional 3.38 cusecs on Tuesday morning.
However, as the city is not witnessing heavy rains, authorities are hopeful that no major flood situation would arise in the national Capital.
While 62 boats have been deployed for rescue operations, district magistrates have been directed to identify more low-lying areas in view of unprecedented rise in the water level.
With inputs from IANS and PTI