The Indian Consul-General in Houston, Anupam Ray, met Mr Grillot and his family yesterday at the University of Kansas Hospital.
Mr Grillot was released from the hospital on Tuesday. Mr Ray also said that Sushma Swaraj has 7.3 million followers, who all conveyed their best wishes.
India salutes the heroism of Ian Grillot ! Best wishes for a speedy recovery.- Sushma Swaraj (@SushmaSwaraj) February 27, 2017
"We will stand with you, whatever you need," he said. Responding to this Grillot said, "I look forward to being able to go meet everybody."
Mr Grillot and his family are invited to India as soon as he is able to travel, according to a news release from the University of Kansas Health System.
Indian engineer Srinivas Kuchibhotla, 32, was killed while another Indian man and his colleague Alok Madasani was critically injured.
In a video from his hospital bed, Mr Grillot had said: "I was just doing what anyone should have done for another human being. It's not about where he was from or his ethnicity."
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