Hi Gourav,
Thanks for using Syncfusion Products.
You can able to achieve your requirement using Spacing and ColumnFixedWidth properties in chart control.
1)Spacing property in chart control.
Please refer the following code snippet which illustrates how to control the space between the points in a series.
this.chartControl1.Spacing = 0;
2)ColumnFixedWidth property in chart control.
The following code snippet which illustrates how to increase and decrease the column width in column chart.
this.chartControl1.ColumnWidthMode = ChartColumnWidthMode.FixedWidthMode;
this.chartControl1.ColumnFixedWidth = 10;
For more details please refer the following link.
http://www.syncfusion.com/products/chart/windows/features/Visual_Appearance/Spacing_Effects.aspxPlease take alook at the attached sample.
http://websamples.syncfusion.com/samples/Chart.Windows/F60957/main.htmLet me know if this helps.
Regards,
Rashidha.