External Affairs Minister Sushma Swaraj today said, she was undergoing tests at All India Institute Of Medical Sciences (AIIMS), Delhi for a kidney transplant. In a tweet, Mrs Swaraj said, she was being treated for kidney failure and is presently on dialysis. <br/>Mrs Swaraj has been in and out of the hospital for last few months. She was admitted to AIIMS on the 7th of this month and is being monitored by a team of doctors. The Minister was admitted to AIIMS in April as well when she underwent treatment for pneumonia and other health issues.