The Mughals, although trace back to the Mongols, aren't really that similar. The Mongols preferred the 'plunder and flee' tactics, while the Mughals were largely "Indianised/ Persianised" empire builders who preferred to settle rather than plunder.
And those lines were drawn and that was that.
Hardly the sort of thing a petty plunderer would do.
BTW, the Mongols did conquer almost the entire known world.