NEW DELHI India on Friday formally implemented its central inflation target of 4 percent, an important confirmation of the inflation-fighting policies championed by Reserve Bank of India (RBI) Gover**r Raghuram Rajan, who steps down next month. Junior finance minister Arjun Ram Meghwal tabled a **tification in parliament's upper house that confirmed the target at 4 percent, plus or minus 2 percent, in line with the goal the government originally agreed with Rajan.