Time series of Indian Stock Indices data

on BSE:
--> Latest Index Watch,
the page shows all the indices by the BSE [Link]

--> Archives of BSE Indices,
including ratios like P/E, P/B and Div. Yield [Link]

on NSE:
Index Concepts
-> Impact Cost [Link],
-> Beta [Link] and
-> Total Returns Index [Link]

Latest Indices data [Link]
Index Valuation numbers (P/E, P/B & Yield) [Link]
Index Daily Values (open, high, low, close) [Link]
Details of past changes in the NSE indices [Link1, Link2]