Wishing his brother Aparshakti Khurana on his 31st birthday on Sunday, Ayushmann Khurrana posted a picture with him and wrote, "Birthday greetings to my biggest support system. I'm his cheerleader, brother, critic, soulmate." "So proud of him...he has evolved so much as a person and a performer...The biggest source of energy in the entire Khurrana clan," Ayushmann further wrote.