Hers has been a rolling stone's life. Looking back on her 43 years, she supposes the rootlessness to stem from growing up in many places as a diplomat's daughter. Although born in Delhi, she did not set foot on Indian soil again till the age of eight. "It was an awful shock," she says. That early feeling of being the outsider lingered. Later, life in boarding school in Kodaikanal and Elphinstone College, Mumbai, exacerbated her sense of being at odds with the world. BJP MP Vasundhara Raje, her best friend at school whom she has hardly seen since, describes her as being "odd but brilliant". Among other habits, Padmanabhan confesses to "a reputation for ending friendships abruptly and completely". She refuses point-blank to talk about her marriage but describes her father's last years ("his life crumbled completely after retirement, he was totally unprepared for life after government") with a candour that is sad, funny and spot-on. Her views on the subject of children are akin to those of songwriter Cole Porter who, when asked whether he liked them, replied: "Yes, on toast".