Hi Mohan. You're in luck - there is a lot of information online and, from what I can tell, every Excel/VBA website under the sun seem to have coded their own free date-picker addins for you to download and implement into your project. It somewhat depends on whether you're using 32bit or 64bit excel - if using 32bit Excel, there is an ActiveX control that you should be able to easily incorporate into your workbooks. There is plenty of information on that control here in Mr Excel.
If using 64bit Excel, you won't be able to use that control, so the best option available is to use one of the Userform solutions that [honestly-most-VBA-websites] have created. In fact there is even one detailed on this site in the Excel Articles section (see the above toolbar) - see the article published 8 Feb 2021. But there are at least half-a-dozen readily available for free and found on the first page of a google search.
