Book reviews and notices : K.C. YADAV, ed., From periphery to centre stage: Ambedkar, Ambedkarism and Dalit future. New Delhi: Manohar, 2000. 233 pp. Tables, notes, references, appendices, bibliography, index. Rs. 400 (hardback). AND M.L. RANGA, ed., B.R. Ambedkar: Life, work and relevance. New Delhi: Manohar, 2000. 176 pp. Notes, references, appendices, bibliography, index. Rs. 350 (hardback)