Amrita Singh is an Indian film actress. Amrita's mother was influential in launching her daughter's career in Hindi cinema. She lobbied with B.R. Chopra who was looking for a fresh face for his film "Nikah". Having already rejected Zeenat Aman (who played the lead in his previous mega success "Insaf ka Tarazu") he decided on Salma Agha. Rukshana Sultan was miffed and wrote threatening letters to Salma Agha in hopes of scaring the British raised girl to run back to London. The controversy over the anonymous letters grew and the letters were finally traced back to Amrita Singh, however, much after Betaab was already on the floors. Salma Agha went on to do Nikaah, Zeenat Aman moved on to another mega success, Qurbaani and Amrita Singh got her success with Betaab, however, her reputation was tarnished.

Source: Wikipedia