India, March 18 -- Indian-origin astronaut Sunita Williams commenced her return journey to Earth after spending nine months in the International Space Station (ISS) where she remained stuck with colleague Butch Wilmore.

Meanwhile, Indian PM Narendra Modi wrote a letter to Williams where he said he is waiting to see Sunita Williams visiting India in future after returning home.

Modi wrote in the letter: "1.4 billion Indians have always taken great pride in your achievements. Recent developments have yet again showcased your inspirational fortitude and perseverance."

"Even though you are thousands of miles away, you continue to remain close to our hearts," he wrote in his emotional letter addressed to the Indian-origin astronaut.

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