Ilyas Shah emerged victorious after conquering Lakhnauti and Sonargaon in 1342 and 1352 respectively. He then proclaimed the establishment of the Sultanate of Bengal in 1352 through unification of the three regions: Satgaon, Lakhnauti and Sonargaon. This region became known as ""Bangalah"" or ""Mulk-i-Bangalah"". Capital of this region was in Pandua. He was known as ""Shah-i-Bangalah"" during his tenure, and the people living in this region were known as "Bengalis". He established his capital in Pandua. The area was the former capital of the Gauda Kings and the Pala Emperors.