Hi Karthik,
Load the same data to an infoobject with PERRNO (time dependent char) and activate the master data.
and after Master Data activation, your result will be like below.
| Perrno | Start Date | End Date |
|---|---|---|
| 1001 | 01.04.2013 | 31.05.2013 |
| 1002 | 01.04.2013 | 31.05.2013 |
Thanks