According to the family members, some hand sanitiser fell down when Rajib was pouring from one bottle to another. Later, he caught on fire either from lit cigarette or mosquito killing coil.
As Anasuya came to rescue her husband, she also sustained injuries.
Rajib sustained 87 per cent burn injuries while his wife had 20 per cent injuries, phycisian Partha said.
The couple has a seven-year-old daughter.
Rajib was a physician of neurosurgery department of Bangabandhu Sheikh Mujib Medical University (BSMMU) while his wife Anasuya Bhattacharya is a physician working at a private hospital in the capital.