Nagarjuna's daughter-in-law Samantha Akkineni has also wished him calling her father-in-law 'MAMA'. Samantha wrote this, "No words can describe my respect for you. I wish you an abundance of health and happiness, today and always.Happy birthday to the man ,the phenomena Nagarjuna, mama" Last year, during the lockdown time, Samantha took part in the Green India Challenge along with Nagarjuna and planted some saplings.