CALCUTTA, India, Nov. 27—King Wangchuk of Bhutan has foiled what was apparently an armed attempt to depose him, it was reported here today.

The King, who returned to the Himalayan country from Zurich Wednesday, has issued emergency orders under which no officials of the Government can leave the country without his permission. At the same time, he is understood to have asked the Bhutanese Premier, Lhendup Dorji, who is in London, to go on leave.

There were reports that Brigadier Ugyen Tangbi, deputy commander of the army, and four others had fled the country.

According to authoritative sources, the King has drafted charges of treason against them.

Reports from the Bhutanese capital said a number of army officers had been arrested. Those arrested were said to include Agye Tshering, the quartermaster general, and Col. Lam Dorji, acting chief of the army.