New Delhi, Dec 12 (ANI): Politicos reacted on Friday after President Pranab Mukherjee in his autobiography stated that former Prime Minister Indira Gandhi was not aware of the Constitutional provisions of Emergency that was imposed in 1975 and it was Siddartha Shankar Ray who led her into the decision. BJP leader GVL Narsimha Rao said that these revelations are quite interesting. BSP Chief Mayawati said that it is a matter of investigation. NCP leaders Majid Memon and Tariq Anwar said that it was very big mistake committed by former Prime Minister Indira Gandhi. JD (U) leader Sharad Yadav Indira Gandhi was a very aware Prime Minister.