Amid Byomkesh's quest for truth, Satyabati's sudden appearance surprises everyone. Things take a sharp turn when Satyabati unknowingly discovers a secret tunnel.

• Srijit Mukherji
• Sharadindu Bandyopadhyay

• Debraj Bhattacharya
• Anirban Bhattacharya
• Sohini Sarkar