They don't show any of the scenes being shot, usually. They also hardly interview the actors (here I think the media is also not showing enough interest). All that is adding to the PR problem. There's not enough publicity. The SLB name is big but the makers also need to do the usual things other shows do to promote their show. I remember when a certain other incredibly popular romance did their promos with the leads every week, the forum would be hysterics about the upcoming shows because romance sells! It really helps! Maybe if they showed more telling promos, it would help. They did a telling holi promo but there has been no holi! Think about it, if the week's spoilers comes out anyway, why not just show a piece? Just a thought.
Gautam is doing his part on Twitter but that is his own initiative. The production should work on promos, maha episodes and all that. It is a great story, it just needs to reach the new audience with promos, etc. The Indian audience already loves SLB's stories, they have showed that time and time again.