Maharashtra, lockdown or restrictions have been imposed in several cities and districts in the state in a bid to curb the spread of the killer virus.The 60-year-old Maharashtra CM, who got his first Covid-19 vaccine jab earlier on Thursday, said his government would be forced to implement a complete lockdown in some parts if norms were not followed by the common people.A decision would be taken in the next couple of days, CM Thackeray added.In spite of the coronavirus restrictions, around 700 people gathered to attend a marriage function at Kalyan in Maharashtra's Thane district, following which police have registered a case against its organisers, civic authorities said.The event was held on March 10, the Kalayn Dombivli Municipal.