The point-to-point inflation based on the wholesale price index rose from the previous week's 4.22 per cent. The inflation was at 6.58% in the year-ago period.
The WPI rose by 0.1 per cent to 192.6 points due to costlier primary articles even as fuel and manufactured goods prices stood unchanged.
The index was at 184.6 points in the year-ago period.
The government revised upwards the inflation to 5.91% during the week ended April 16 as compared to the provisional estimate of 5.64%. The WPI stood corrected at 191.7 points as against the provisional level of 191.2 points.