Nimma Raja Reddy's opposition to Chandrababu Naidu proved very costly for the Telugu Desam Party in Cherial constituency.
In April 2004, Naidu expelled him from the party along with three other senior members, Dharoor Pullaiah and C. Lakshmi Narasimha Reddy.
[1] In the 2009 assembly elections, when Bharat Rashtra Samithi made an alliance with Telugu Desam Party, he opposed it and joined the Indian National Congress to show his hostility against Chandrababu Naidu.
He played a very crucial role in helping Ponnala Laxmiah from Congress Party to win 2009 Assembly Elections in the New Jangaon Merger Cherial constituency.
Nimma Raja Reddy suffered a severe heart attack on 19 October 2009 in Cherial, Warangal Dist.