Shortly after taking office as governor, after a quarter century of hostilities, a treaty was made with the king of Kandy, Kirti Sri Rajasinha, on February 14, 1766 in Colombo .

The entire coastal area and cinnamon all districts remained in the hands of the East India Company, while Kandy was not to collude with other powers.

The king sent a delegation to Batavia to negotiate favorable peace terms, but there was Van der Parra, cousin Iman Falck, Governor General.

[4] The Rijksmuseum is a watercolor by Carel Frederik Reymer 18th century an official meeting in 1772 between Iman Falck and an embassy from Kandy.

Dr. RL Brohier in his book Changing Face of Colombo describe the reception: "The Hall is lavishly decorated with rich carpets, lamps and candelabras, paintings large and small, mirrors with gilded frames, giving us a glimpse of the style in-which the Dutch Governors of Ceylon lived.