Jadgesh Kumar, 54, was a carpenter working at Doha's Khalifa International Stadium that is part of a sporting complex for the football tournament.
The stadium will be the first FIFA World Cup venue and the first stadium in the region to be lit by LED lighting, which is both more sustainable and more versatile than traditional lighting.
The stadium will be inaugurated tomorrow evening - becoming the first World Cup venue to open when it hosts the Emir Cup final between local sides Al Rayyan and Al Sadd - one month after independent auditors published fresh details of ongoing exploitation of migrant workers across Qatar's World Cup projects. Three other Indians employed on World Cup sites have died of heart attacks in the last 18 months, according to a 2016 report by Qatar's World Cup organizing body, the Supreme Committee for Legacy and Delivery.
His death was not due to his working conditions, organisers said. While the statement offers condolence and words of sympathy to the family of the deceased, the Committee has refuted any possible connection between the working conditions of the employees and their subsequent deaths.
It said Qatar's recent partnering with a university to improve workers' nutrition showed a commitment to the well-being of World Cup workers.
"It's a year since Amnesty International exposed the exploitation of migrant workers who helped to build the Khalifa Stadium, but abuses on Qatar 2022 sites have continued", said James Lynch, deputy director of Amnesty International's global issues programme.More news: Indy 500: Bourdais hits 233mph as storms halt Day 5 practice
Rights group have alleged labour abuses at Qatar World Cup sites.
Arena in the capital Doha, was built in 1976 and has undergone reconstruction to world Cup games.
However, the Qatari government has denied claims there are higher instances of heart attacks among construction workers.
The construction process, however, has not been without controversy or tragedy, as a British worker fell to his death at the stadium in January, while there has been widespread criticism of Qatar's treatment of its huge army of migrant workers.
Others had their passport confiscated and barred from leaving the country by their employers, according to Amnesty's report.