Prime Minister Narendra Modi Saturday expressed his condolences over the death of former Delhi chief minister Sheila Dikshit. The three-time chief minister was admitted at Escorts hospital this morning after she complained of sickness. She died of cardiac arrest at the Delhi hospital. "Deeply saddened by the demise of Sheila Dikshit Ji. Blessed with a warm and affable personality, she made a noteworthy contribution to Delhi's development. Condolences to her family and supporters. Om Shanti," he tweeted.