Hi Sudarshan,
Thanks again for your submission of this proposal of this tutorial and as Ujaval says an advanced tutorial would be really helpful.
Before we drafted the guidelines for the proposals (in terms of posting in Google Groups), Ark Arjun had also proposed to write a tutorial on Atlas (as Atlas he also uses at the end of his case study that is now published
here on the India QGIS website).
Perhaps you both could coordinate (Arjun's mail is added here) and Arjun could perhaps also write here what specifically he had in mind.
If you have any questions and/or need any clarification before putting more specifics on any proposal in this group, please feel free to reach out to the content and review team (we do not have a separate e-mail for this group, but you can send it to any or a few from this team).
Thanks,
Ellen