Hi Jagan,
Thanks for contacting us.
The reason why the values you pointed out aren't displayed is because they are too small compared to the greatest of these which is upwards of 10 million. If you look at the chart's vertical axis, you will see that the difference between two minor ticks is approximately 200 000. Therefore, the chart will calculate the height of a value as small as 30 694 - or even smaller - to be less than a pixel. Hence, the bar won't be rendered. For situations like this one, you can use a logarithmic axis. RadChart's documentation and its online demos both offer a section on this feature
here and
here respectively.
All the best,
Petar Kirov
the Telerik team