Rajesh and Nupur Talwar, from the New Delhi suburb of Noida, had reportedly broken down in tears when they were convicted Monday and vowed to appeal the verdict.
Defense lawyer Rebecca John said after Tuesday’s sentencing that the case against the Talwar’s, based largely on circumstantial evidence, amounted to a "witch hunt" and said "there has been a serious miscarriage of justice in this case.
"The couple came under suspicion soon after their daughter, Aarushi, was found dead in her bedroom, her throat slit with surgical precision. Police initially named the Talwar’s missing Nepali housekeeper as the prime suspect, until his lifeless body was found a day later on a terrace above Aarushi’s room.
The double-murder became one of the most closely-watched whodunits in recent memory in India, with dramatic turns by police and prosecutors seizing national headlines and launching debates over details of the case.
Prosecutors for the Central Bureau of Investigation had asked for the death penalty.
"Such crime comes under the rarest of rare cases," prosecutor Naresh Yadav said. "So they should be awarded maximum punishment.
"The investigation determined both victims had been hit with a golf club and later had their throats slit.
Police offered several possible motives in prosecuting the parents, including an honor killing.
Several other suspects had been questioned by police. After the case stalled, the Talwar’s in 2011 demanded a fresh investigation.
The couple was also sentenced to an additional five years in prison for destruction of evidence. (AP)