Complex sentence: After the fight, Tanya takes Bunty to her grandfather, Anthony Gonsalves (Randhir Kapoor), who happens to be a scientist and he is working on a time machine.
Split into simpler sentences: After the fight, Tanya takes Bunty to her grandfather, Anthony Gonsalves (Randhir Kapoor), who happens to be a scientist. When Bunty and Tanya enter Anthony's laboratory, he is working on a time machine.