Mohammed Ajmal Kasab was given multiple death sentences by a court, which convicted him of charges including murder, waging war against India, conspiracy and terrorism in May.
Amin Solkar, Kasab's lawyer, said Mumbai's High Court will start hearing Kasab's appeal on October 18.
If the high court confirms his death sentence, Kasab can still apply for clemency to the Indian government. Such motions often keep convicts on death row for years, even decades.
The attacks left 174 people dead, including nine gunmen.
India blames Pakistan-based militants for the attacks.
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