Cost Inflation index base year 1-4-2001

Year	Cost Inflation index
2001-02	100
2002-03	105
2003-04	109
2004-05	113
2005-06	117
2006-07	122
2007-08	129
2008-09	137
2009-10	148
2010-11	167
2011-12	184
2012-13	200
2013-14	220
2014-15	240
2015-16	254
2016-17	264
2017-18	272