Hello @Gorantla Srikanth,
if I understand this correctly, you are able to connect your device code to IoT Central.
You try to send a message to IoT Central but it seems it is not arriving in IoT Central?
IoT Central is very sensitive regarding messages that are not on par with the Device Template.
First, check the documentation again and try one or more examples or training modules and compare this way of working with your code.
Then, send a simple message with just a small amount of values (perhaps just one value) while the Device Template is also limited in complexity.
Once these messages arrive, scale up in message size. Please work with 'baby steps'.
I understand this looks like taking a bit more time but this pays off in the end.
If the response helped, do "Accept Answer". If it doesn't work, please let us know the progress. All community members with similar issues will benefit by doing so. Your contribution is highly appreciated.