Hi Amar,
Yes, we can achive the Mouse Left Button event for each bar series.
Kindly find the below sample location to illustrate this.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=Silverlight.OlapChart_IEnumerable_b767aeeb.zipPlease let us know if you need further assistance.
Thanks,
Suriya