Revdanda Fort

Revdanda Fort, the Portuguese Fortaleza de Chaul, stands at Revdanda near Chaul, where the Kundalika River meets the sea. It was completed in 1524 by the Portuguese captain Soj and once had creek water on three sides; the main entrance is on the south, and today the Alibag–Murud road passes right through it. The Battle of Chaul between the Portuguese and Muslim fleets for control of trade was fought near the harbour mouth.

The Portuguese held the fort until the Maratha siege of 1739, ceding Chaul by treaty in 1740, and the British took it in 1818. Around 1570–71 the Franciscans were given a chapel of St Blaise built by Fr Brás Dias, rededicated it to the Mother of God and founded a convent that became the chief landmark of Chaul's outskirts. After the Maratha takeover, Peshwa Madhav Rao in 1764 allowed local Christians a nine-day festival and a church at Korlai across the river.