IIRC, an Agnikul spokesman says this rocket will be launched like a satellite launcher, though of course, it won't be placing any satellite in orbit. So it won't be a sounding rocket. Hope I am not misunderstanding!
Agnikul thinking of launching their vehicle by the end of the year. Sounds optimistic! But wonderful, if they carry it out.
https://economictimes.indiatimes.com/tech/startups/agnikul-to-launch-agnibaan-rocket-before-2022/articleshow/94417175.cms