Actor Tanmay Vekaria, who plays 'Bagga' in 'Taarak Mehta Ka Ooltah Chashmah' spoke about his co-star Ghanshyam Nayak, known as 'Natu Kaka', who died of cancer on Sunday. Tanmay said that Ghanshyam was in immense pain since the last 2-3 months. "He was not able to gulp, eat or drink. He was going through a lot," Tanmay added.