In 1947, he was elected as the Secretary of Rashtriya Swayamsevak Sangh. After partition, he moved over to India and joined Bharatiya Jana Sangh, founded by Syama Prasad Mookerjee. In 1957, he was asked to assist Atal Behari Vajpayee as his secretary. Atal Behari Vajpayee was already an MP by then.
In 1965, he married Kamla Advani. The couple has two children – Pratibha and Jayant.
In 1970, he entered the Rajya Sabha for the first time. In 1972, he became the president of Bhartiya Jan sangh.