i have trying to show the number of registrations for institution. for each month. i have created 12 data points to display data for 12 months. In x axis it is showing the City name correctly but the value in columns in mixing between the cities like Mysore data is showing in BBSR or bangalore. I have created for fiddle for the same.
The dataPoints in multi-series charts need to be aligned, i.e. there should be the same number of dataPoints in all the data-series. In cases where y values are missing in some of the data-series adding a dataPoint will null y value should work fine. I have updated your jsfiddle, please take a look.