Hello Tuhin Ghosh,
With what IDs you are trying to find the last three rows? As I see from the picture that last three rows IDs end up with:
but the first ones end up with:
Based on that I am making the assumption that these are items from detail table from different parents. If this is the case you should use different IDs for the parent rows in order to get different rows from the detail tables.
All the best,
the Telerik team
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