After the announcement of extension of the nationwide lockdown, Lav Agarwal, Joint Secretary, MoHFW has announced the categorisation of affected areas into two zones- Containment zone and Buffer Zone. Containment zones will be divided into sectors with 50 houses each.

Containment zones are created for identifying local transmission of the disease and avoid the infection spread, and based on the number of cases/contacts listed and mapped by Rapid Response team. Now India's districts are classified into three categories—hotspot districts with large number of positive cases, non-hotspot districts with few coronavirus cases and green zones with no fresh cases reported for some time. Health ministry has announced and listed 170 districts as hotspots, and 207 districts as non-hotspots. An additional 5 km radius buffer zone including neighbouring districts will also be identified.

Here's the list of hotspot districts:

*DELHI: South, South East, Shahdara, West, North, Central, New Delhi, East and South West.

* ANDHRA PRADESH: Kurnool, Guntur, Spsr Nellore, Prakasam, Krishna, Y.S.R, West Godavari, Chittoor, Vishakhapatnam, East Godavari and Anantapur.

* MAHARASHTRA: Mumbai, Pune, Thane, Nagpur, Sangli, Ahmednagar, Yavatmal, Aurangabad, Buldhana, Mumbai Suburban, Nashik.

* Chandigarh.

* Gujarat: Ahmadabad, Surat, Bhavnagar, Rajkot, Vadodara.

* Karnataka- Belagavi, Mysuru, Bengaluru Urban.

* Kerala- Kasaragod, Ernakulam, Pathanamthitta, Thiruvananthapuram.

* Madhya Pradesh- Indore, Bhopal, Ujjain
* Punjab- Jalandhar, Pathankot.

* West Bengal- Kolkata, Howrah, 24 Paraganas North, Medinipur East.

* Rajasthan: Jaipur, Tonk, Jodhpur, Banswara, Kota, Jhunjhunu, Jaisalmer, Bhilwara, Bikaner, Jhalawar, Bharatpur.

* Tamil Nadu: Chennai, Tiruchirappalli, Coimbatore, Tirunelveli, Erode, Vellore, Dindigul, Villupuram, Tiruppur, Theni, Namakkal, Chengalpattu, Madurai, Tuticorin, Karur, Virudhunagar, Kanniyakumari, Cuddalore, Thiruvallur, Thiruvarur, Salem, Nagapattinam.

* Uttar Pradesh: Agra, Gautam Buddha Nagar, Meerut, Lucknow, Ghaziabad, Saharanpur, Shamli, Firozabad, Moradabad.