The incident took place at Mahathapar village in the Sikandarpur police station area late Sunday night.
Runi was married to Dharmendra Verma and had two daughters — Roli (5) and Golu (3), they said.
On Sunday, Dharmendra apparently asked her to stop using the phone, after which she took consumed the poison in their house, the officer said.
The body has been sent for post-mortem examination, and an inquiry is under way, the SHO added. PTI COR KIS SKY SKY