A man died of heatstroke at Foyjullahpur area in Kaliakair upazila of Gazipur on Monday morning.
The deceased was identified as Kalimuddin, 55, son of late Hasen Bepari, hailing from the area.
According to local sources, Saiful Islam's wife Nusrat Jahan Mim alias Julia got into a quarrel with her father-in-law Kalimuddi in the area this morning. At one stage, Kalimuddin fell unconscious due to heatstroke and died on the spot.
Jewel Mia, sub-inspector of Kaliakair police station, confirmed the matter.