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The toxicology report shows chronic arsenic poisoning over 8–10 days — not a single dose. The killer did not need to be present on the morning of death. Focus on who had daily access to Jagdish's drink in the 10 days before he died — not on who had an alibi on the day of discovery.

Meena Lal's statement (E02) identifies who brought Jagdish his morning chai every day for 12 days — an unusual new habit. The authentication report (E03) shows this same person's fingerprints on the forgery provenance documents. What was Jagdish about to do with the forgery evidence (E04)?

Pooja Agarwal brought Jagdish his morning chai every day from April 28 onwards. She has fingerprints on the arsenic canister in the storeroom (E05, Pack B) and on the final poisoned flask found on his desk (E08, Pack B). She prepared that flask herself on May 9 — the night before her alibi trip to Jodhpur. Her train ticket is real. Her alibi is real. But with chronic arsenic poisoning, the killer doesn't need to be there at the end.