Janata Dal-United president Sharad Yadav on Wednesday said an attempt was being made to wipe out tribals from existence, with Madhya Pradesh's Chutka nuclear power project and Rajasthan's nuclear plant in Bhilwara being a part of this endeavour.He accused the Bharatiya Janata Party (BJP) and Congress of trying to make tribals non-existent by setting up Danpur (Banswara) nuclear power plant.Yadav was visiting the Jhabhua-Ratlam parliamentary constituency in support of a joint candidate of non-BJP and non-Congress parties for a by-poll and addressed three public meetings.