As many as 17 birds died in the Deer Park on Saturday, and 10 died on Sunday.
At least six more birds died in New Delhi today due to bird flu, taking the total deaths of migratory birds from the disease to 64, Delhi Animal Husbandry Minister Gopal Rai said.
Mr Rai, however, also said the anti-virus operation in the Deer Park in south Delhi was bearing results as only two bird deaths were reported there today.
As many as 17 birds died in the Deer Park on Saturday, and 10 died on Sunday.
The deaths of four other birds on Monday were reported from a lake behind Shakti Sthal near Raj Ghat in New Delhi, Mr Rai said.
"We have started close monitoring of the lake along with other locations. But with bird deaths being reported from more locations, there is need to increase vigilance," Mr Rai said.
He issued a health advisory with a detailed list of do's and don'ts for the residents of the city.
The measures recommended in the advisory include one to avoid eating of raw or half-boiled eggs and meat.
Mr Rai today held a meeting of the coordination committee in the Delhi Secretariat to consider further action on checking the spread of H5N8 influenza virus.
He ordered all government departments to spread "chuna" (lime powder) around every water body.
The minister also ordered them to spray antivirus Sodium Hypochlorite around all water bodies where birds gather.