Modi, who was accompanied by Delhi BJP president Manoj Tiwari, said Dikhsit made a noteworthy contribution to the development of the national capital.
In a tweet, the prime minister conveyed his condolence to the family members and supporters of the 81-year-old Congress leader, who passed away here on Saturday.
"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," he said.
A three-time chief minister of Delhi, Dikshit passed away at a hospital here following a prolonged illness "Condolences to her family and supporters. Om Shanti," Modi said in his tweet.