The accused Seema Parveen, who was admitted in the MGM Hospital in Jamshedpur, had slit the veins of her two sons aged 2 and 4 years before they were poisoned, Superintendent of Police (City) S Karthik said.
He said financial hardship was stated to be the cause behind the incident.
The statement of the woman could not yet been recorded as she was in the state of drowsiness for consuming excessive quantity of poison, he said.
The police was also to interrogate Parveen's husband to unearth the truth behind the incident.
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