Yeah....that thing pretty much died post 1947 when Field Marshal Cariappa not only decided but made sure that army will serve under civilian leadership and not the other way around.
As for the Gen. V.K. Singh "episode", Shekhar Gupta is still running around with egg on his face, unable to prove jackshit. Only a fool will mobilize a light infantry brigade to capture Delhi at time when you have nation on high alert due to Republic day which also includes, multiple companies of CAPFs, Delhi Police, and the main hub of NSG.
Even if you want to topple the govt., 22 division, Meerut would be a much safer bet as they have the logistics and firepower to do so.