Chandigarh, June 30 -- With 119.5 mm rain recorded till 8.30 am on Sunday, Chandigarh saw its wettest June day since 1973 even as waterlogging, road cave-ins and tree collapses brought the tricity to its knees. This brought the day temperatures down by three notches - from 33.9degC on Saturday to 30.2degC on Sunday, 6.1 degrees below normal India Meteorological Department (IMD) officials said chances of heavy rain will continue over the next two days and issued an orange alert for Monday. As per the IMD, which started keeping records for the city in 1954, Chandigarh's wettest day ever was on June 18, 1974, when 146.4 mm rain was recorded. IMD Chandigarh director Surender Paul said there were two major reasons behind the downpour. "When the monsoon system is still progressing over parts of the country, the system isn't as strong as it is in the central or southern parts of the country. But this time, the system moved northwards, which affected the whole region lying in the foothills of Himalayas, including Chandigarh." He added that a Western Disturbance (WD) was also active in the region though it wasn't very active. But combined with the monsoon system, it led to heavy rain. Like every year, Chandigarh again failed to cope with the downpour as choked gullies led to waterlogging across Madhya Marg, all internal sector roads, Chandigarh-Panchkula Road near Housing Board lights, and in Colonies No. 4 and 5. The worst-affected areas, where knee-deep water was witnessed, included the road from Attawa village to Sector 35, Sectors 43, 44, 45, Sector 22, Palsora village, Burail, and Sector 29's Iron Market. In Sector 16, water entered homes, while shops in Khejeri village and Sector 38 were also inundated. MC chief engineer Sanjay Arora said, "I have already sought reports from the executive engineers on the waterlogging in their respective areas. Once we receive the reports, measures will be planned accordingly." Mohali was no better with residents at many places having to call fire tenders to pump out water from the streets. The worst-hit localities were in Phase 3B2, 4, 5, 7, 11, and Sectors 70 and 71. In Phases 3B2, 4, 5, 7, and 11, water even entered homes. Roads in various parts of the Industrial Area turned into streams, with over one-ft water reported in Phases 7 and 8. Traffic jams were reported across the district due to water accumulation. The situation was equally grim in Zirakpur, Kharar, and Nayagaon, where several roads were submerged. In Nayagaon, water entered houses, causing major inconvenience to the residents. City mayor Amarjeet Singh Sidhu said, "Around four months ago, we conducted a survey to identify faults in the stormwater drainage system. We need Rs.200 crore to address these issues, but despite repeated communications, the local bodies department has not responded."...