Hello Narendra,
The locked columns functionality was introduced in Q1 2014, so if you want to take advantage of that functionality you should upgrade to a newer version.
As an alternative you could render two identical Grids with the same dataSource and display the "locked" columns in the right Grid and the other columns in the left Grid. You could then link the scrollbar of the right grid to the left one.
Regards,
Konstantin Dikov
Progress Telerik