1 / 8Kartik Aaryan, who was last seen in Imtiaz Ali's 'Love Aaj Kal' with Sara Alia Khan is currently enjoying his quarantine period with his family at home. As his younger sister Kritika turned a year older yesterday the brother-sister duo celebrated her birthday together at home after 7 years.2 / 8Bollywood actor Karthik Aryan has shared pictures of his sister's birthday on social media. (Photo: Instagram)3 / 8On the special occasion, Kartik tried to prepare a cake for her. However, his baking attempt failed miserably, and what was meant to be a small cake ended up becoming a large biscuit. 4 / 8Recently Kartik shared a video in which he was seen washing dishes. (Photo: Instagram)5 / 8 Karthik also pledged monetary assistance assistance in PM Relief Fund for the coronavirus crisis. (Photo: Instagram)6 / 8Sharing pictures with the birthday girl and his creation on Instagram, Kartik wrote, 'Lockdown ka fayda - Celebrating Kittu’s bday together after 7 years. Chota Cake Banane gaya, Bada Biscuit ban gaya. 7 / 8 Meanwhile, on the work front, Kartik will be next seen in 'Bhool Bhulaiyaa 2' alongside Kiara Advani.8 / 8Kartik's last few releases has managed to wonderful business at the box-office and the actor is keen to resume work after the 21-day lockdown period.