Best way to recover paddy field after waterlogging and flood in Bihar?

Drain standing water as fast as possible because paddy can tolerate some flooding but submerged plants die from lack of oxygen and disease in a few days. Once water recedes, wash silt off the leaves, let the field dry to a workable moisture, then top dress nitrogen in small split doses to push new tillering since flood leaches away nutrients. Watch for bacterial leaf blight and sheath rot in the humid aftermath and spray as your KVK advises. If the crop is fully lost and the season allows, go for short duration or flood tolerant paddy varieties for re sowing. Report the damage to the agriculture department and revenue office quickly so you are covered under crop insurance assessment.