The correct answer for the first Deputy Prime Minister of India is option 2, Vallabhbhai Patel.

Let`s review the other options to better understand. Option 1, Morarji Desai, was the sixth Prime Minister of India, not the first Deputy Prime Minister. Option 3, G. B. Pant, was an Indian freedom fighter and politician, but he did not hold the position of Deputy Prime Minister. Option 4, Devi Lai, is not a known figure in Indian politics and therefore, is not the correct answer.

Vallabhbhai Patel, also known as Sardar Patel, was the first Deputy Prime Minister of India, serving under Prime Minister Jawaharlal Nehru. Patel played a crucial role in the integration of the princely states into the newly formed Republic of India. He was a key figure in the struggle for Indian independence and a prominent leader of the Indian National Congress.