Hi @tejesh21.
Delete the file at the following path and then try compiling the sketch again:
C:\Users\LENOVO\AppData\Local\Temp\2516488751\sketch_merged.cpp
If looking for it with your file manager or command line, note that the AppData folder is hidden by default. On Windows "File Explorer", you can make it visible by opening the "View" menu, then checking the box next to "☐ Hidden items".
Please be careful when deleting things from your computer. When in doubt, back up!