The Covid-19 tracker—Aarogya Setu app—is now mandatory for all smartphone users in Noida and Greater Noida. The app has been made mandatory for government employees and private employees in the country and now Noida Police has issued an order that asks all residents to download Aarogya Setu on their smartphones. Not having the Aarogya Setu app on smartphones while out in a public place in Noida or Greater Noida will be considered a violation of the coronavirus-forced lockdown and attract punishment, according to new guidelines issued by the police. Action will also be taken against people going outdoors without a face mask or spitting in public places, according to the police in Gautam Buddh Nagar in western Uttar Pradesh.