The BSE SENSEX Sixty 65:35 index is a strategic index that includes constituents from both the BSE SENSEX and BSE SENSEX Next 30 in a ratio of 65:35.

Asia Index, a wholly-owned subsidiary of leading stock exchange BSE Ltd, on Friday announced the launch of three new indices -- BSE Sensex Sixty 65: 35, BSE Sensex Sixty, BSE Power and Energy Index

India's BSE will retain weekly derivative contracts linked to the Sensex after the country's markets regulator announced tighter rules for equity derivatives, two sources with direct knowledge of the matter said.

In a notification, the BSE announced that no new weekly contracts for the SENSEX 50 will be issued after the expiration of current unexpired contracts.

SEBI on Tuesday asked exchanges to cut down the number of weekly options contracts available to investors to only one from November 20