@Loganathan R
The easiest method without writing any code would be to use AzCopy sync. With sync the last modified times are used for comparison. The file is skipped if the last modified time in the destination is more recent. If running Windows you can have azcopy run as a schedule task or cron if using Linux.
Hope this helps! Let me know if you have further questions or concerns and I will be happy to assist.
-------------------------------
Please don’t forget to "Accept the answer" and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.