Torrential flooding across north India has claimed at least 140 lives as of October 2 according to official estimates, with the states of Bihar and Uttar Pradesh worst affected.

Footage from Patna, the capital of Bihar, shot on September 30 shows the extent of the damage as people are being ferried by boat through water-logged streets and buildings.

The India Armed Forces were also deployed to provide aid to the region, with helicopters being used to drop supply packets on isolated areas.

Devastated by a spell of torrential rains lasting over three days, claiming at least 28 lives, Bihar on Monday trudged towards normalcy with intensified relief and rescue work in badly affected localities including the state capital.While people tried resuming normal business under an overcast sky, but weather department predicted fresh showers may lash the state any time.Three fresh deaths caused by drowning were reported in the afternoon, one from Nawada and two from Jehanabad districts, raising the toll to 28. Unconfirmed reports however maintained that the number of casualties was far in excess of 30.A chopper of the Indian Air Force arrived in the city by noon, upon request from the state government, and commenced air-dropping of food and other relief material to people living in low-lying areas where water level is said to be several feet deep.Well-heeled people stood haplessly on the terraces or roofs of their houses, trying to catch packets that were dropped by the helicopter or hurled at them from boats ferried by the NDRF and the SDRF.