Thank you so much for your reply, it is life saver.
The command "las2las.exe -i "pointcloud.las" -o "pointcloud6695.las" -epsg 6674 -vertical_epsg 6695" works fine !!
Adding snap of lasInfo.exe -
However, when I analyzed data for same las file with EPSG:6677 and with EPSG:6677 & 6695 there is not height difference in the points.
Let me add snaps.
1) Below snap consist the point cloud points with EPSG:6677,
command used: las2las.exe -i "MyPointCloud.las" -o "MyPointCloud_6677.las" -epsg 6677
Below snap consist the point cloud points with EPSG:6677 & EPSG: 6695
command used: las2las.exe -i "MyPointCloud.las" -o "MyPointCloud_6677_6695.las" -epsg 6677 -vertical_epsg 6695
Since we say 6695 lift the data up by some height, then there should be difference in z-coordinate for both file by some factor, but they are same.
How do I get points with the height factor added by EPSG:6695 ?
Let me add original las file with this reply, please fins the attachment.
Waiting for your answer.