During the period from 1581-1606, Guru Arjan Dev Ji's time, the Sikh Population grew numerously, masses of conversion taking place, even before Sikhism, had won thousands of converts from between 1520s-1581, Even Powerful chieftains like Chaudhary Langaha Dhillon, of Jhabal, Chaudhary Amrika of Tarn Taran Sahib area, and Bhai Manjh of Kang Mai village, and many many more, had converted to Sikhism. 92% of the Punjabi Tribes Such as Khatri, Jatt, Rajput, Tarkhan, Chamar, Arora, Kamboja, Saini, etc converted to Sikhism, mainly from Hinduism and a handful from Islam. Even Muslim Pir's also became followers of Guru Arjan Dev Ji, and even Hindu Saints, Yogis, Sidhas became Sikhs, Sikh religion, had became the official religion of medieval Punjab. This caused jealousy among the Strict Muslims at the Mughal court in Delhi, who started being hostile towards the House of Guru Nanak Dev Ji. During his period Guru Sahib, founded many villages, wells, towns, cities, in the Punjab. Sikhism was a majority in Majha, Doaba, Malva, Nakka, region of the Punjab.