Authorities issued an alert asking people not to venture out of their homes unless it was absolutely essential.
Suburban services were disrupted with trains on all the three lines -- western, central and harbour -- running late.
The prime suspect in the Mumbai double murder case of well-known painter Hema Upadhaya and her lawyer was today detained by Uttar Pradesh Special Task Force in Varanasi.
Waterlogging was reported from areas like Dadar, Wadala, Worli, Kurla, Chembur, Bandra, Andheri, Kandivili, Vikhroli, Kanjurmarg and Bhandup, among others.
The mood was full of gaiety and devotion, with chants of 'Ganpati Bappa Morya' reverberating across Maharashtra.
"A police team left for UP to trace the culprits, as it suspects that they must have fled to that state," a senior police official said on Monday.
With the incessant rains halting the city's lifeline local trains, many office-goers on Friday bicycled to work, calling it the best alternative to reach their destinations in time.
Devotees across India on Thursday welcomed their most beloved and venerated deity -- Lord Ganesh -- into their homes and community pandals, kickstarting the ten-day Ganesh Chaturthi celebrations with zeal and devotion.
The interrogation of suspects in the double murder of noted artist Hema Upadhyaya and her lawyer has given fresh leads to investigators on whereabouts of main accused Vidya Rajbhar following which Mumbai Police teams have been dispatched to various locations.
Mumbai received 231.4 mm rain in the last 24 hours, while Thane received 229.81 mm.
Most popular mandal in Mumbai, Lalbaugcha Raja, takes Rs 51 crore cover.
If we can adhere to those standards, most passengers will be happy.
Shiv Sena activists threw ink at me and smeared my face. They abused me, Kulkarni alleged.