In 1999, she joined the BJP-led National Democratic Alliance (NDA) government and became Railways Minister. In 2000, Banerjee presented her first Railway Budget. In it, she fulfilled many of her promises to her home state West Bengal. She introduced a new biweekly New Delhi-Sealdah Rajdhani Express train and four express trains connecting various parts of West Bengal, namely the Howrah-Purulia Rupasi Bangla Express, the Sealdah-New Jalpaiguri Padatik Express, the Shalimar-Adra Aranyak Express, the Sealdah-Ajmer Ananya Superfast Express, and Sealdah-Amritsar Akal Takht Superfast Express. She also increased the frequency of the Pune-Howrah Azad Hind Express and extended at least three express train services. Work on the Digha-Howrah Express service was also hastened during her brief tenure.