Cost Inflation Index:- Cost inflation index (CII)as notified by Central Government alongwith analysis of the same is as under:
| FINANCIAL YEAR | COST INFLATION INDEX | Increase in CII and 75% of percentage of real inflation allowed | Real inflation % of CII Increase allowed / 3 X 4 |
| 1981-1982 | 100 | ||
| 1982-1983 | 109 | 9 = 9% | 12% |
| 1983-1984 | 116 | 7= 6.422 | 8.56% |
| 1984-1985 | 125 | 9=7.7586 | 10.34% |
| 1985-1986 | 133 | 8=6.4 | 8.53% |
| 1986-1987 | 140 | 7=5.263 | 7.02% |
| 1987-1988 | 150 | 10=7.1428% | 9.52% |
| 1988-1989 | 161 | 11=7.333% | 9.78% |
| 1989-1990 | 172 | 11=6.8323% | 9.11% |
| 1990-1991 | 182 | 10=5.8139% | 7.75% |
| 1991-1992 | 199 | 17=9.340% | 12.45% |
| 1992-1993 | 223 | 24=12.060% | 16.08% |
| 1993-1994 | 244 | 21=9.4170% | 12.56% |
| 1994-1995 | 259 | 15=6.1475% | 8.20% |
| 1995-1996 | 281 | 22=8.494% | 11.33% |
| 1996-1997 | 305 | 24=8.5409% | 11.39% |
| 1997-1998 | 331 | 26=7.8549% | 10.47% |
| 1998-1999 | 351 | 20=6.0423% | 8.06% |
| 1999-2000 | 389 | 38=10.826% | 14.44% |
| 2000-2001 | 406 | 17=4.370% | 5.83% |
| 2001-2002 | 426 | 20=4.926% | 6.57% |
| 2002-2003 | 447 | 21=4.93% | 6.57% |
| 2003-2004 | 463 | 16=3.58% | 4.77% |
| 2004-2005 | 480 | 17=3.67% | 4.90% |
| 2005-2006 | 497 | 17=3.54% | 4.72% |
| 2006-2007 | 519 | 22=4.43% | 5.90% |
| 2007-2008 | 551 | 32=6.17% | 8.22% |
| 2008-2009 | 582 | 31=5.62% | 7.50% |
| 2009-2010 | 632 | 50=8.60% | 11.46% |
| 2010-2011 | 711 | 79=12.36% | 16.49% |
| 2011-2012 | 785 | 74=10.41% | 13.88% |
| 2012-2013 | 852 | 67 = 8.54% | 11.38% |
| 2013-2014 | 939 | 87 =10.21% | 13.62% |
| 2014-2015 | 1024 | 85 = 9.05% | 12.07% |
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