Dikshit had gone to the Escorts Hospital for a "routine check-up" but was instead admitted there, the sources said.
She underwent an angioplasty procedure at the same hospital Nov 27.
A stent was put in the right artery of the 74-year-old chief minister. She was admitted to the hospital Nov 26 evening after she complained of fatigue and throat infection.
Uttar Pradesh minister Shivpal Singh Yadav's letter to US President Barack Obama on cabinet colleague Azam Khan being detained at Boston airport has ...