The four-stage Graded response Action Plan or GRAP was approved by the Delhi Disaster Management Authority in July in anticipation of a third wave of Covid.
The first step of the graded plan under the Yellow, Amber and Orange alert curfew from 10 pm to 5 am will be imposed.
The 'Yellow' alert will be sounded when the positivity rate crosses 0.5 per cent or new cases increase to 1,500 or oxygenated bed occupancy reaches 500.
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The response involves allowing construction, manufacturing activities and opening of shops of essential goods.
However, shops and establishments of non-essential goods and services, and malls are allowed to open between 10 am and 8 pm based on the odd-even formula. Only one weekly market per zone with 50 per cent of vendors are allowed to open if the 'yellow' alert is sounded.
Restaurants are permitted with 50 per cent capacity from 8 am to 10 pm while bars can also operate with the same capacity, but from 12 noon to 10 pm.
Marriages and funerals are allowed with 20 people in attendance while all other types of gatherings are prohibited.
The Delhi Metro will run at 50 per cent seating capacity while auto-rickshaws and cabs can ferry up to two passengers. Busses will ply with only 50 per cent exempted category passengers.
Cinema halls, banquet halls, spas, gyms, outdoor yoga activity, amusement parks, stadiums, swimming pools, schools and colleges will not be allowed if 'Yellow' alert is sounded.
Religious places will be open but without visitors. Parks and gardens can open.
Private offices can function with up to 50 per cent of employees. In Delhi government offices also, barring certain categories of officials, only half of the remaining employees will be allowed.