The correct answer is option 1, Dr. Rajendra Kishore Panda. The Kuvempu Award is a prestigious literary award given in the memory of renowned Kannada writer Kuvempu. It is presented annually to recognize outstanding contributions to Kannada literature.

Option 2, Amitav Ghosh, is an acclaimed Indian author known for his novels in English. While he has received various awards for his work, he has not been chosen for the Kuvempu Award.

Option 3, Vikram Seth, is another renowned Indian author well-known for his novels, poetry, and travelogues. Like Amitav Ghosh, he has not been chosen for the Kuvempu Award.

Option 4, Chetan Bhagat, is a popular Indian author known for his commercial fiction novels. While his works have gained popularity, he has not been selected for the Kuvempu Award.

Therefore, the correct answer is option 1, Dr. Rajendra Kishore Panda, who has been chosen for the Kuvempu Award 2020.