Hi @haribabu_paramasivam,
I hope this message finds you well. Don't worry, if the polygons are unfilled and you add new connections to a net consumed by a polygon those airwires can come back. None of your routing has been removed unless you actually delete a net. Make sure to refill the polys and you should see a lot of the GND and +5V airwires go away.
If you still believe that there are nets missing go ahead and run the ERC in the schematic, it will confirm if you have any inconsistencies.
Let me know if there's anything else I can do for you.
Best Regards,

Jorge Garcia
Product Support Specialist for Fusion 360 and EAGLE
Kudos are much appreciated if the information I have shared is helpful to you and/or others.
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