I will post a film reco in nukkad today . pls stay tuned to my bat-channel.
few years ago a prolific youtube poster named <name witheld> did post some hitherto unseen footage of brahmos TELARs climbing over some ghat roads and the Agni missile train in what looked like NE india. it was removed after a few days, probably was sourced from some internal drdo seminar materials.
for train TELARs, it is best kept low profile and no different than regular goods trains. this will make it hard for satellites to track or on-ground humint to detect.
for road mobile TELARs currently I think at best we can site them inside cantonments and use pre surveyed launch pads inside cantonments itself. only after cansister Agni5 comes will they be rugged enough to move around outside..and will need to stick to NDHP 4-laned highways with luck and local police helping if they have to go through towns without a bypass for the NH.
for us we had best depend on cansister launch from trains and SLBMs.