Hi Ashwini,
Can you please check when the Google cache was updated for that page?
1. https://i.rankmath.com/9q6X0H
2. https://i.rankmath.com/R8N0Uh
If the cache date is from before adding the new meta description, then you just have to wait for Google to re-crawl and re-index the page with the new info. If the date is after you made the changes, the next step is to check if your title/description is properly set up in the page source:
3. https://i.rankmath.com/HwXR1o
If it matches your settings, there is nothing else you can do as Google shows the title/description tag according to the search intent.
The best you can do is optimize your meta tags to try and match the intent of the search/keyword.
You can read more about it here
https://support.google.com/webmasters/answer/35624?hl=en
This section sheds light on that:
“Why the search result title might differ from the page’s
tag”
Hope that helps. If you have any further question(s), please let us know. Thank you.