Praise be to Allah.
The hadiths that speak of the conquest of India are as follows:
It was narrated that Thawbaan, the freed slave of the Messenger of Allah (blessings and peace of Allah be upon him), said: The Messenger of Allah (blessings and peace of Allah be upon him) said: “There are two groups of my ummah whom Allah will protect from the Fire: a group who will conquer India, and a group who will be with ‘Eesaa ibn Maryam (peace be upon him).”
Narrated by an-Nasaa’i (no. 3175) and Imam Ahmad in al-Musnad (37/81), Mu’sasat ar-Risaalah edn. Classed as hasan by the commentators on al-Musnad. Classed as saheeh by al-Albaani in as-Silsilah as-Saheehah (no. 1934)
Source : https://islamqa.info/en/145636