Bangladesh's highest court on Wednesday upheld the death sentence for the leader of the country's largest Islamist party for crimes during its 1971 independence struggle, paving the way for his execution within months, AFP reports.

The Supreme Court led by chief justice S.K. Sinha dismissed an appeal by Motiur Rahman Nizami, the "Emir" of the Jamaat-e-Islami party, who was sentenced to be hanged for murder, rape and orchestrating the killing of top intellectuals as the head of a ruthless militia during the conflict.

"The court upheld the death sentence in three out of four charges. We're very happy," prosecutor Tureen Afroz told reporters.