Dr Seshadri's significant contribution lies in algebraic geometry, mainly the moduli problems for vector bundles on curves and the construction of quotient spaces modulo-reductive algebraic groups. In a joint paper with Dr M S Narasimhan, he gave a characterization of the stable bundles of D Mumford in terms of unitary representation of certain discrete groups. Using the result, he succeeded in constructing the module varieties as normal projective varieties. This work is regarded as basic in the field. Another important work of Dr Seshadri which has found wide application in many moduli problems relates to the quotient of the space of stable points under a reductive algebraic group.