Who invaded northern india in the fifteen twentys and established the mughal dynasty?

The Mughal Empire was an empire in the Indian subcontinent, founded in 1526. It was established and ruled by the Timurid dynasty with Turco-Mongol Chagatai roots from Central Asia, claiming direct descent from both Genghis Khan (through his son Chagatai Khan) and Timur, but with significant Indian Rajput and Persian ancestry through marriage alliances; only the first two Mughal emperors were fully Central Asian. The dynasty was Indo-Persian in culture, combining Persianate culture with local Indian cultural influences visible in its traits and customs.

it required the unanimous approval of the states before the congress could enact any measure.