Torrential downpours have swept away homes, triggered landslides and claimed at least 180 lives across South Asia.
Assam and Bihar have been among the worst hit. TV footage showed roads and railway lines in Bihar submerged.
Authorities said the deaths occurred largely due to electrocutions caused by ill-maintained power lines even as large segments of the city suffered hours-long outages that lasted up to a day in some areas.
Heavy rains since Thursday have hit several districts in Nepal, especially in the country's eastern region and the southern plains, affecting thousands.
Floods and landslides triggered by torrential monsoon rains have killed at least 40 people across South Asia in the last two days, officials said on Saturday. The monsoon, which lasts from June to September,
After a week's lull, monsoon revived with full force in Mumbai, coastal Konkan and other parts of Maharashtra, disrupting normal life, here on Wednesday.
The monsoon is crucial for irrigation and groundwater supplies in the impoverished region — home to a fifth of the world's population — and brings relief after the unforgiving summer.
The heavy rainfall began on Monday and continued on Tuesday and sewage flooded most of the streets in Karachi, the capital of southern Sindh province.
Seasonal rains have crippled India's financial centre of Mumbai this week, disrupting rail and air traffic in the city of 18 million, while wall collapses have killed more than 30 people.