Correct option is A
Mannathu Padmanabhan was a key figure in the socio-cultural renaissance of Kerala. He is the founder of the Nair Service Society.
He was honored with the title "Bharata Kesari" by the then President of India.
He has also received the Padma Bhushan award.
He is known as the Madan Mohan Malaviya of Kerala and is also referred to as Bharata Kesari.