Kamlesh consumed a poisonous substance at her residence shortly after the body of her mother, Kalu Devi, arrived from a hospital for last rites, a police official said.
Devi, who died last night, was recently diagnosed with cancer and was undergoing treatment in Chandigarh, the official said.
Kamlesh was rushed to a hospital where she died during treatment, the official said, adding that her body was handed over to the family after completion of legal formalities.