"As he got up to speak, he suddenly collapsed. He was taken to the SMS Hospital. He is recovering in the ICU," a BJP official said.
Rajasthan Chief Minister Vasundhara Raje and her cabinet colleagues rushed to the hospital to meet the Ajmer MP, who had defeated the Congress' Sachin Pilot in the 2014 Lok Sabha polls. He is currently the president of Rajasthan Kisan Ayog.
"He was rushed to SMS hospital where a team of doctors attended on him. His blood pressure and pulse are now normal but he continues to be critical and is unconscious," state Health Minister Kali Charan Saraf said.
Mr Shah is in the state to review the party's preparations for the state assembly elections due next year as well as 2019 Lok Sabha polls.
His next stop will be Haryana. During his three-day visit starting August 2, he will review the works undertaken by Chief Minister Manohar Lal Khattar government.
Mr Shah is on a 110-day country-wide tour which began in Jammu in April this year. His tour will be in two phases -- 95 days and 15 days. With an eye on the 2019 Lok Sabha polls, Mr Shah is travelling across states to strategise and find ways to strengthen the party at the grass-root level.