The four, including two women, were seated in S-8 and S-9 coaches, which are non-AC, and other passengers claimed that they died due to excessive heat.
Such weather conditions are not typical for May which tends to be the hottest month of the year in Delhi with a mean maximum temperature of 39.5 degrees Celsius.
Senior IMD scientist R K Jenamani said the monsoon covered south and central Arabian Sea, entire Kerala, parts of Karnataka and Tamil Nadu between May 31 and June 7.
The police have put up barricades, tippers and rolled out water cannons to prevent protesting farmers from entering Chandigarh.
'Rashtrapati Bhavan may have hygiene standards that are a benchmark for the rest of the hoi polloi, but you had to feel sorry for the august assembly of guests who braved the temperature for a seat at the new Cabinet's swearing in,' says Kishore Singh.
Santosh Patkar of Devgadh Taluka Sindhudurg district of Maharashtra is a worried man these days. Devgadh, which is known as the home to world famous Alphonso variety of mangoes, has seen an unusual drop in yields which is affecting farmers' income. Being one of the primary agricultural produce from the area, Santosh is not untouched by this somewhat rare phenomenon. He said in his own mango garden, yields have come down by a third from most trees.
Delhi is likely to receive the first monsoon showers on June 30 or July 1, India Meteorological Department (IMD) officials said on Tuesday.
Labour union leader Shrirang Barge said the state government would have known Dharmadhikari has a massive following and that the event would have attracted several lakh people, so why were arrangements for water, shade etc, missing.
Parts of Telangana are currently reeling under a heat wave that has already claimed 21 lives even as the meteorological department officials warned that day temperature would shoot up further.
Australia will be greeted by blazing sunshine and a venue where they lost only once last century when they arrive at Lord's on Thursday for the second Ashes Test against England determined to level the five-match series.
A record heatwave in July 2018 killed over a dozen people in Tokyo with monthly average temperatures transcending 30 degrees for the first time in 20 years.
'We will have to face the effects of climate change for generations to come!'
Japan is being scorched by an intense heatwave that has prompted fears of similar extreme weather when the sporting showpiece takes place in the country.
By now, monsoon should have reached the central India, including parts of Madhya Pradesh, Rajasthan, eastern Uttar Pradesh and Gujarat, but it is yet to reach Maharashtra.
'The limit of not playing the match is really high, it's like it needs to be above 45 degrees and humidity. I think this limit should be a little lower because playing in this condition is not nice for anyone'
Australian Open organisers have tweaked their 'Extreme Heat Policy' for next year's tournament after being accused of forcing players to perform in "inhuman" conditions during a heatwave in January.
IMD has said the temperature in April-June across most parts in India is expected to be 0.5-1 degrees Celsius warmer than normal. However, doctors and scientists say they haven't found any direct correlation between the speed of COVID-19 spread and warm weather.
Images from across Europe and parts of Asia show hot and bothered people dunking their feet in buckets of ice and wading into the sea as sweltering temperatures put some areas on red alert.
At a virtual press conference to launch the report, Inger Anderson, Executive Director, United Nations Environment Programme, said, "Climate change is here and now. No one is safe. Despite warnings from so many years, the world did not listen. We need to act now. Reducing greenhouse gas emissions will not only limit climate change but also reduce air pollution."
"The season averaged maximum temperatures in Himachal Pradesh, West Rajasthan, Konkan, Goa, Coastal Karnataka, Kerala and Arunachal Pradesh are likely to be higher than normal by 0.5-1.0 degree Celsius," the Met department has said in its forecast.
'He (Kohli) is a top ranked player in the world at the moment and I think a dangerous customer for England as he has the motivation to improve his record in this country. Every player wants to be known to be able to play well in all sorts of conditions'
Here are some pictures of people who found interesting methods to avoid suffering under the fiery sun.
The first Jal Shakti Minister Gajendra Singh Shekhawat may believe that the water crisis is a media creation, but the photographs below suggest otherwise.
The killer heat wave brought the nationwide toll to 2,338 even as some places like Delhi got respite on Monday.
Zaheer Khan sees no harm in people having high expectations from the young left-arm wrist spinner Kuldeep Yadav in the upcoming five-Test series starting August 1.
The IMD chief also allayed fears of occurrence of an El-Nino.
Djokovic, playing his first tournament for six months because of an elbow problem, dropped his opening two service games and although he battled back to break Monfils twice he wavered again as scrappy opener went his opponents' way.
War-torn Afghanistan, playing only their third match after being inducted as a Test-playing nation two years ago, completed a famous victory by defeating Bangladesh by 224 runs with 3.2 overs left on the final day on Monday.
Ian Bell joined an elite trio on Thursday with his third Ashes century in successive Tests after England had lost three cheap wickets on the opening day of the second Test against Australia at Lord's.
