Bahadur Shah, the son of Muzaffer II who had negotiated with Selim, the ruler of Gujerat, appealed to Constantinople for joint action against the Portuguese navy. Suleiman I used this opportunity to check Portuguese domination in the Indian Ocean and appointed Hadim Suleiman Pasha as the admiral of his Indian Ocean fleet. Hadim Suleiman Pasha's naval force consisted of some 90 galleys.[6] In 1538, he sailed to India via the Red and Arabian Seas, only to learn that Bahadur Shah had been killed during a clash with the Portuguese navy and his successor had allied himself with Portugal.