The task has been carried out by 20 rapid response teams spread over 48 villages in Assam, to cut the spread of infection.
The local authorities who are performing the culling operations are being assisted by a team from the central health ministry.
Some 48000 birds - chicken and ducks are yet to be culled. This process is expected to take a week to finish. All precautions have been taken to avoid the spread of infection to humans.
The veterinary and animal husbandry department in Assam has sounded an alert in the area. They have embarked on strict surveillance of poultry farms and birds are being monitored to detect potential symptoms of bird flu.
Sale and purchase of poultry is strictly forbidden in the region.