The picture of deers in Ooty is actually from Nara, an ancient city of Japan from 2014 and not from Ooty during the lockdown period.
The city of Nara has a tradition where people feed the deers in the winter season. The musicians play Beethoven Symphony No. 6 to gather deers and feed them. Hundreds of deers come out of the Kansai National park into the streets of Nara to be fed by people.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.