Consider the following statements regarding formation of landforms in India :

I. Structurally, the Meghalaya plateau is an extended part of the Deccan plateau.

II. The Valley of Kashmir was formed in a synclinorium.

III. The Gangetic plain was formed in a fore deep.

IV. The Himalayas originated as a result of triangular convergence of the Indian plate, the European plate and the Chineses plate.

Which of these statements are correct?

47th B.P.S.C. (Pre) 2005