Holding the accused guilty, Additional District Sessions Judge Raj Bahadur reserved his verdict and the quantum of punishment is likely to be announced shortly.
Revati Singh (75), wife of the BJP leader in Uttar Pradesh Assembly, was murdered and Rs 78 lakh in cash and ornaments were looted from their house on July 30, 2010.
Police had later arrested seven persons, including the domestic help Shankar, and recovered a cash amount of 52.80 lakh looted by them.