Gadkari fainted at the convocation of the agriculture university at Rahuri while the national anthem was being sung.
The 61-year-old BJP leader attributed the incident to low oxygen supply to his body as he was wearing convocation robes.
"I felt some suffocation during the event. The pandal (at the venue) was air-tight. I was wearing the robes of the convocation ceremony, that is why there was less oxygen. That is also why I fainted. My health is alright. (I have) no problem of blood pressure or sugar (now)," Gadkari told reporters.
Earlier, the minister had attributed the incident to low sugar in his body.
"Had slight medical condition due to low sugar. I have been attended by doctors and I am doing well now. I thank all of you for all the well wishes," Gadkari had tweeted shortly after the incident, after which he gave a detailed explanation to media.
A video grab of the event shows Maharashtra Governor Ch Vidyasagar Rao, who was standing beside him, supporting Gakari after he fainted.
Gadkari was examined by a team of doctors present at the venue. His blood pressure was checked and he remained on his seat on stage for about 10 minutes, after which he walked to his vehicle.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)