Hi @Santosh.C
Welcome to the Dhan community.
Thanks for your feedback, we have noted it down. Currently the team is working on multiple features and improvements. I will surely let you know if we plan on bringing the custom watchlist feature.
I also welcome you to take a moment to introduce yourself and share your unique story with us. By doing so, you’ll have the incredible opportunity to engage with a multitude of fascinating community members who are eager to connect and learn from one another. We can’t wait to hear your story and embark on this exciting journey together! 
Also, we kindly encourage you to introduce yourself by following this link: Share Your Story & Introduce Yourself.