Sir, I'll again repeat that this is basically a:
lack of interest (Modi isn't interested in a better India, all its policies are anti-Pakistan, anti-Muslims, he is wasting his energy trying to dig holes for Pakistan, eventually when he is short of energy he falls in the same hole himself) (True in many scenarios, one of them is Isolation of Pakistan and now everyone knows who is isolated lol)
lack of supervisions for Indian jawans from their officers (Officers ki is liye ghalti nahi hai unko high command se order e nahi hai, jawaan officer ko dekhta hai kay shayad koi order ho, officer bebas ho kay jawan ki halat ko dekhta hai kay isko mein kab tak chup rehnay ka kaho)
lack of direction (They've got no direction, why i'm saying this is because in their recent high classified meeting between Defense Minister, Chief of defense staff, COAS, and other high ranked personnel they discussed how they can cool China down, rather than making a plan or strategy to confront China so yeah they have accepted the loss and if wouldn't be wrong to say that they have laid their weapons in a very simple and basic manner because they have got no intention to take their lost land back)