"Deeply anguished by the loss of lives in the hospital fire in Odisha. The tragedy is mind-numbing. My thoughts are with bereaved families," Modi said on microblogging website twitter.
"Spoke to Minister @JPNadda (Health Minister) & asked him to facilitate transfer of all those injured to AIIMS. Hope the injured recover quickly.
"Also spoken to Minister @dpradhanbjp and asked him to ensure all possible help to the injured and affected," he said in a series of tweets.
At least 17 patients died and around 12 others injured in a fire that broke out at the Sum Hospital here this evening, in one of the worst such incidents involving a medical facility.