Who among the following was the main rival candidate against India’s first President Dr. Rajendra Prasad?

Q. Who among the following was the main rival candidate against India’s first President Dr. Rajendra Prasad?
Answer: K T Shah
Notes: Dr. Rajendra Prasad contested and won Presidential elections for two times viz. 1952 and 1957. In 1952 Presidential elections, he defeated his nearest rival K. T.Shah while in 1957 elections, he defeated his nearest rival Chowdhry Hari Ram.