The 51-year-old woman "stabbed her five-year-old grandson three times in the stomach and chest with a kitchen knife after he did not pass her the remote control," the regional prosecutor's office in the Siberian Krasnoyarsk region said in a statement.
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The woman had been drinking but was found to be sane, it said. The child survived and later told investigators that he was attacked because "he couldn't find the remote".
The serious injuries sustained by the boy has left him with liver damage, the statement added. The incident occurred in February and the woman was handed the jail term after a trial in a local court.
Domestic violence, especially under the influence of alcohol is a widespread problem in Russia, and goes unreported in most cases.
Read: Tragedy: Baby killed after mother sets house on fire
Forty percent of violent crime in the country is committed in the family, according to a member of the Kremlin's human rights council, who raised the issue at a meeting with President Vladimir Putin last week.
In the first six months of 2015 about two thousand people were killed in domestic violence in the country, according to the statistics presented to Putin.
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