Hi Ravit,
Thank you for your interest in Syncfusion products.
Please refer to the attached sample in which the data points for the ChartSeries are fed from a dataset and a StripLine in created in its Y axis.
http://websamples.syncfusion.com/samples/Chart.Windows/F73783/main.htmPlease try this and let me know if you have any questions.
Regards,
Vinoth