Crisil believes the index will provide market participants an appropriate and easily accessible benchmark to measure and analyse the performance of such securities, the agency said in a statement.
That apart, this total return index seeks to capture returns on inflation-linked securities due to coupon accruals and price change, both adjusted for inflation.
The launch comes as part of Crisil's ongoing effort to develop and maintain representative indices for the debt market. In addition to this index, the agency currently maintains 37 indices across bond, gilts, money market, hybrid and commodity segments, which are used by asset managers for benchmarking their products and portfolios.
"Crisil will continue to develop indices that help market participants gauge the performance of different asset classes and make investment decisions in an otherwise shallow debt market," he said.
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Currently, there is one such security, the 1.44 per cent inflation indexed government stock 2023 (linked to wholesale price index) issued in June 2013. Such securities provide inflation protection on both principal and coupon (interest) payments.
Senior director for capital markets Sandeep Sabharwal said, "We believe the Crisil IIGS Index will meet the need for an appropriate benchmark index for these funds."
He further noted that since its launch in 2013, the inflation-linked government security has gained some popularity in the mutual funds space. Two inflation-linked funds have already been launched and a few are in the pipeline.