Sessions Judge Vandana Dewangan convicted and sentenced Satyanarayan Rathore, 48, and his wife Vimla Bai, 45, yesterday.
The judge also imposed a fine of Rs 1,000 each on them, Additional Public Prosecutor Sanjay Kumar Agrawal said.
According to the prosecution, the couple, who often harassed their daughter-in-law Sangeeta for dowry, set her on fire after pouring kerosene on her at Sapia village in Janjgir-Champa district on April 10, 2015.
When her husband, Nirmal, noticed it, he ran to her rescue and doused the fire. He took Sangeeta to hospital where she died.
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