Yes, HIT has been working on this project for quite a while now, they have attempted to make 155MM gun barrels once before, but the end product was not upto mark. However this one seems a bit more promising, I’ve seen it when it was under the works. It is a Towed 155 Gun, but it’s made in a modular enough way that if they wanted to turn it into an SP they could do so with a suitable platform (maybe they’ve already done work on that as well, though I’m not aware of it).
This may also tell why PA has been holding back on Tower Arty procurement but going ahead with SP arty testing despite having a lot of SPs being in service already.
Lastly, if this gun can pass its trials and the military likes it, then it could go a long way in helping with the armies long term modernization plan (COAS recently announced specifically that they’d be modernizing the core of artillery, currently we can see that the armored core is being modernized with VT4s and AK-1s, PA has similar plans for other cores)