Mumbai rain hits rail, road and air traffic in the city.

Highlights Local trains were running 15 minutes late due to flooding on tracks

Traffic jams reported during peak office hours in the morning

Rain has stopped in many areas, water levels receding

Khar subway, closed for vehicles but open for swimmers. #mumbairainspic.twitter.com/Lb6nJ2R2EX — ekcuttingchai (@ekcutingchai) August 5, 2016

Local trains on Mumbai's Central and Harbour lines were running about 15 minutes late for most of Friday morning because of flooding on tracks after heavy rain. Roads too were flooded in many parts of the city and traffic jams were reported during peak office hours. Domestic and international flights to and from Mumbai were delayed by about 30 minutes because of rain, low visibility and air congestion, officials said.Rain had reduced in many parts by afternoon. As water levels receded, traffic eased in many areas. Delays were reported mostly from low-lying areas where water takes longer to drain out.The weather office has forecast very heavy rain in Mumbai and the coastal Konkan region over the next 48 hours and all major services like the police, fire brigade and the National Disaster Response Force or NDRF are on high alert.On Friday morning, traffic crawled on major thoroughfares like the Eastern Express and Western Express highways and arterial major north-south roads, delaying thousands of office goers.Local train services, the lifeline of Mumbai, were hit because of flooding near Sion-Kurla on the Central line, which caused delays on the other lines as well.Heavy rain in Mumbai suburb Thane and the adjoining Palghar and Raigad slowed traffic on all major routes linking Mumbai with Ahmedabad, Pune, Nashik and Goa.Mumbai residents shared pictures on social media.