How many million years ago, Indian Plate was a part of Gondwanaland?
Almost 140 million years ago, the Indian Plate formed part of the supercontinent Gondwana with the modern Africa, Australia, Antarctica, and South America. Gondwana broke up because continents floated apart at different velocities. It was a process which headed to the opening of the Indian Ocean.
So, the above information shows that 140 million years ago, Indian Plate was a part of Gondwanaland. Thus option D is correct.