Noted Economist and Political Analyst S Gurumurthy today released a book titled Politics of Opportunism at a function in New Delhi. <br />'' <br />'' The book was written by R P N Singh which throws light on the subject related to rise of regional parties and Centre -States relation. On the occasion, Mr Gurumurthy shared his views on politics of opportunism. <br />'' <br />'' He said Citizenship Amendment Act grants citizenship to the minority communities who have faced religious persecution in three neighbouring countries and came to India. <br />'' <br />'' He said, granting citizenship to such minority communities was also the stand of Mahatma Gandhi and former Prime Minister Pt. Jawaharlal Nehru.<br />''