Private offices have also been asked to rationalize the number of employees coming to work by allowing work from home and staggering working hours.
Maharashtra on Monday recorded 12,160 fresh Covid-19 cases and 11 deaths on Monday, with Mumbai, Thane and Pune being the epicentres of the fresh surge.
Disaster management minister Vijay Wadettiwar had said the day before that the 'stage of fresh lockdown' was nearing, but the decision will be taken by the chief minister.
Maharashtra: Gathering of more than five persons prohibited after 9 pm as state sees 20 more Omicron cases
Further, more than 100 people can not attend weddings in closed places, while in open spaces the number will not be more than 250 or 25 percent of the total capacity, whichever is less.
Only people up to 50 per cent of the capacity at a venue will be allowed to attend any event and organizers of programmes should be fully vaccinated against coronavirus.
Civic schools for classes 1 to 7 reopen in Mumbai; students welcomed with flowers, cartoon characters
But, some private schools here decided to reopen after Christmas holidays, while adopting a cautious stand and citing late communication by authorities.
Chief Minister Uddhav Thackarey along with his wife Rashmi Thackeray and two sons Aaditya and Tejas visited the Mumba Devi temple here around 8.45 am.
Until now, schools were conducting physical classes only in those areas which were reporting relatively fewer COVID-19 cases.
There are 51,238 active cases in the state. Pune has the most of them with 13,515, which is around 26.38%. Thane, Satara and Ahmednagar are also high on active cases.
This information was revealed in a presentation made before Chief Minister Uddhav Thackeray and his cabinet colleagues on Wednesday.
Nandurbar district in north Maharashtra does not have a single active COVID-19 case on the third day in a row.
COVID-19: Maharashtra allows under-18 people to visit malls with age proof; state reports ten more Delta Plus variant cases
The state government has already allowed people who are fully vaccinated to visit shopping malls which can remain open till 10 pm on all days.
Maharashtra schools reopening: Decision will be taken by local officials amid outbreak of Delta Plus variant
The state task force on COVID-19 at a meeting on Wednesday night opposed the decision to resume more classes at schools.
If the oxygen requirement reaches 700 metric tons, lockdown will be imposed again, Uddhav Thackeray said in a statement.
Maharashtra: More physical classes to resume from August 17; fully vaccinated to get train passes from Wednesday
The area where schools are to be reopened should have a very low COVID-19 prevalence for the last one month, and the district collector should arrange for vaccination of teachers and other staff.