Maharashtra Chief Minister Uddhav Thackeray today pointed out that the number of daily coronavirus cases in Mumbai - one of the country's worst-hit cities - has doubled over the last few days. Calling the Covid situation in the state "serious", Mr Thackeray, in a virtual address, said it would take a couple of weeks to ascertain if the current upsurge in daily figures is a fresh wave of infections. He also warned people to follow coronavirus protocols to avoid another lockdown.