1997 SEN, Ashoke (b. 1956) PhD,FASc,FNA,FRS, Professor, Harish Chandra Research Institute,Chhatnag Road,Jhusi, Prayagraj – 211019; Res. E1, Harish Chandra Research Institute,Chhatnag Road,Jhusi, Prayagraj – 211019; Tel: 0532-2274302(O), 2274002(R); Fax: 569576; Email: ; Sp. String Theory.