Abida Sultan was the eldest daughter of Hamidullah Khan, the last "nawab" of the Bhopal state. Abida Sultan was the presumptive heiress of the Bhopal throne. However, she gave up her right to the throne and migrated to the newly formed Pakistan in 1950. In Pakistan, she joined the foreign service. Therefore, the Government of India excluded her from the succession and her younger sister Sajida succeeded her instead. Wikipedia
The definitive Wikipedia entry for Abida Sultan. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Abida_Sultan