"The Silent Witness"
is interrogated. She breaks down: She wanted Dr. Mehta’s research data to sell to a foreign agency. Vikram caught her stealing it. She killed him, then used his ID to enter the lab, injected Dr. Mehta, and wiped the CCTV. cid new episode
finds Vikram’s phone—last call to Rohan Malhotra (rival CEO). Rohan is arrested but has an alibi: he was at a charity event (on video). ACT 3 (28:00–40:00) Sachin discovers: The toxin that killed Dr. Mehta is a rare compound only accessible to Ira Saxena (ex-wife), who runs a biotech firm. "The Silent Witness" is interrogated