Bharatiya Janata Party (BJP) president Amit Shah is suffering from swine flu and getting treatment in the All India Institute of Medical Sciences (AIIMS).
Meanwhile, senior BJP leader Arun Jaitley has developed serious ailment and is likely to undergo surgery in the United States.
Jaitley had left for New York on Sunday for treatment of soft tissue cancer in his thigh, a type of a tumour which can spread to other parts of the body quickly. The finance minister had unexpectedly left for the US for a medical check-up relating to his kidney ailment, sources had said on Tuesday.