Ajay Devgn wishes Rajamouli on his birthday 'RRR' filmmaker SS Rajamouli celebrates his birthday today. Ajay Devgn took to Twitter to share a picture with the ace director and wish him on his special day. "Happy birthday dear Rajamouli Sir. Have a fabulous one. I love your vision & all of us love your cinema. Keep making proud Sir. Most importantly, today is your day @ssrajamouli," he wrote.