what’s wrong in this code- https://ide.codingblocks.com/s/341094
What's wrong in this code- https://ide.codingblocks.com/s/341094
Hey @hssharma2212000 ,You were not accessing the data of the node when you were first trying to find the head of the merged list.
I have updated the code please refer to it.
Hope it helps 
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If your doubt is now resolved please mark it as resolved and rate me accordingly .
Else you can further questions here .
Thankyou