Hi Amitesh ,
Could you please let us know are you facing this issue in BarChart or in ColumnCharet? From your screen shot we found that you are using Column chart. The labels displayed perfectly in X axis when using less number od columns. Please refer to the attached sample.
http://www.syncfusion.com/Product/uploads/ChartDateHandling_9e908463.zipCould you please check the sample and let me know whether you are able to reproduce the issue in this sample?. It would be helpful if you provide a sample or modify the attached sample to reproduce this issue. It will help us to resolve it as early as possible.
Thanks,
Nagaraj