India, Feb. 18 -- A Mumbai woman's video showing rows of towering residential buildings and commenting on the city's growing population has sparked a debate online about migration, real estate and urban planning.

In the Instagram reel, user Jayantika filmed construction activity around her and pointed to multiple high-rise blocks. She noted that there were "easily around a thousand people living in that block alone," with another thousand likely to occupy a new tower under construction. She said that the view made her realise "how overcrowded Mumbai really is".

Criticising the steep cost of housing, she remarked that people were "paying crores and crores of rupees for just a hole in the wall" - a statement that quickly caught the intern...