The Chandigarh-based CBI's Special Crime Branch (SCB), Ludhiana, has swung into action to solve the nearly 15-year-old Avtar Singh Tari murder case. The CBI has released a sketch of a key suspect involved in the crime. It has also announced a reward of ₹2 lakh for anyone who provides information leading to the arrest of the suspect or solving the case. The CBI has also released its mobile phone number for information sharing, and the CBI claims …