SARDS is
an electronic database containing bibliographic references to South Asia research articles maintained by the Universities of Bonn, Halle and Munich. It covers the period 1797-2000 and is particularly useful for tracing European language articles.
It is a good supplement to the Bibliography of Asian Studies that SOAS Library subscribes to - note that you will need a SOAS user name and password to access this resource off campus.
eSocial Sciences is an online portal produced by south Asian scholars to promote research from India and the South Asian continent. Free registration is required to access some aspects. The site include links to events, working papers, and is a good starting point for finding materials.
Another useful site relating to India is Vidyanidhi, an e-scholarship portal and digital library which is aiming to develop a Online Archive/repository of doctoral theses and dissertations submitted to Indian Universities.