The incident, according to the teenager's father, took place on May 28 when their family, settled at Nasirabad in Rajasthan, had come to Neemuch to attend a marriage.
Police said they have not been informed about theboy's death by his family and hence not launching a probe as of now.
Before Furkan Qureshi became unresponsive Monday while playing the online game, Player Unknown's Battleground (PUBG), on his smartphone, he `shouted blast it, blast it', his father
told PTI.
"He was a very active lad. My son was so engrossed in PUBG game that he played it from Sunday evening to early hours of Monday.
"He slept for a few hours and after getting up had his breakfast and then played the game for six hours at a stretch," the father, Haroon Qureshi, said.
"Furkan shouted `blast it, blast it' after his character in the game lost a battle," he said.
The teenager was rushed to a hospital after he became unresponsive while playing the game, but could not be resuscitated.
"I examined him at my nursing home. He was unresponsive. His heart beat had stopped. I tried my best but he was brought dead," cardiologist Ashok Jain said.
Another city-based cardiologist Vipul Garg said children nowadays get so much mentally involved in playing battle games on mobile phones that their emotions run high due to thrill and excitement, and they often fall prey to heart failure.
Children should be kept away from such mobile games, Garg said.
Kotwali police station inspector Ajay Sarwan said they had not been informed that the boys death has taken place due to a mobile phone game.
"So we are not probing it," he added.
The popular smartphone game has been blamed for adversely affecting studies, overall behaviour, conduct and language of children.
The game has been banned by the police in some cities of Gujarat on ground that it leads to violent behaviour among children and youth.
(With inputs from PTI)