Sheila Dikshit announced on Tuesday that she had resigned from the post of the Kerala governor, becoming the seventh UPA-appointed governor to quit after being apparently nudged by the NDA government.
"Yes, she has resigned," a home ministry official told IANS. He gave no further details.
Dikshit had met President Pranab Mukherjee and home minister Rajnath Singh on Monday, a day after her Maharashtra counterpart K Sankaranarayanan quit, protesting his transfer to Mizoram.
Dikshit, who served as Delhi chief minister from 1998 to 2013, was appointed Kerala governor in March just before the model code of conduct came into force for the Lok Sabha polls.
She is said to have refused to quit earlier after the NDA government had allegedly asked her to resign.
There were reports that suggested that the former Delhi chief minister may be transferred to a state in the northeast.
On Sunday, Maharashtra governor K Sankaranarayanan resigned after he was transferred to Mizoram for the remainder of his tenure till 2017.
Earlier, the NDA government had transferred Kamla Beniwal as Mizoram governor from Gujarat Raj Bhawan. When Beniwal refused to resign, she was sacked three months before the end of her tenure in October.
As Gujarat governor, Beniwal had a running battle with Narendra Modi when he was the state's chief minister.
Virendra Kataria, a former Congress leader, was also sacked as Puducherry lieutenant governor last month.
Five other governors — M K Narayanan (West Bengal), Ashwani Kumar (Nagaland), BL Joshi (UP), BV Wanchoo (Goa) and Shekhar Dutt (Chhattisgarh) — had put in their papers apparently after they were telephoned by the Union home secretary.
Uttrakhand governor Aziz Qureshi has challenged Modi government's moves to ease him out of office, bringing the controversy over removal of UPA-appointed governors under judicial scanner.