The Ghodbunder fort was under the ruling of the Portuguese till 1737. But when the East India Company invaded the country and the city, the Britishers took over the fort and made it the headquarters for the East India Company. They completely occupied the fort in the year 1818 and continued to trade in Thane.
After all these years (post-independence), only the ruins of the fort remain now. Many tourists visit this place to see how various rulings and dynasties affected the structure of the Ghodbunder fort and how it is being preserved now by the government of India and the Archaeological Survey of India (ASI). However, if you are a history buff its definitely more than worth to visit the fort.