2004 SANKARANARAYANAN, Ayyadurai (b. 1961) PhD, Professor (H), School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai – 400005; Res. 103, Bhaskara, TIFR Housing Complex, Homi Bhabha Road, Colaba, Mumbai – 400005; Tel: (022) 22782662(O), 22804816(R); Fax: 2280 4610/4611; Email: ; Sp. Analytic Number Theory/Elementary Number Theory.