An opposition MP has urged the government to “urgently intervene” to save Malaysian Prabagaran Srivijayan from execution in Singapore for a drug trafficking conviction.

Padang Serai MP N Surendran said Prabagaran, who was convicted in 2014, has “exhausted all legal appeals and is facing imminent execution” and that his trial has raised concerns.

“His conviction and sentencing raises serious concerns on the fairness of his trial and appeal processes,” Surendran said in a statement today.

“Two crucial witnesses who were in a position to corroborate Prabagaran 's innocence, were not called or made available to the defence despite full details being provided to the Central Narcotics Bureau (CNB).

“Further, the public prosecutor failed to issue a crucial certificate in Prabagaran's favour, which would have enabled him to avoid the death sentence, even though he had cooperated with the CNB and was thus entitled to the certificate,” the PKR lawmaker said.

Surendran claimed Prabagaran's conviction and sentence was in breach of Article 9(1) of Singapore's constitution, which states that no person shall be deprived of life or liberty, save in accordance with the law.

“Fair trial rights are further guaranteed in Article 10 and 11 of the UN Declaration of Human Rights and Article 14 and 15 of the International Covenant on Civil and Political Rights (ICCPR).

According to Today Online on Sept 23, 2014, Prabagaran was on Sept 22, 2014, found guilty of bringing 22.24g of diamorphine, the pure form of heroin, into Singapore and sentenced to death.

He was arrested in the early morning of April 12, 2012, at the Woodlands Checkpoint while driving into the republic.

The then-27-year-old claimed trial, saying he was unaware of the bundles of diamorphine the authorities had found in his car.

“Since Prabagaran has exhausted all his domestic legal remedies, it is incumbent upon the Malaysian government to take urgent steps to save its citizen from unjust execution,” said Surendran, a human rights lawyer.

“In view of the deprivation of Prabagaran's constitutional rights, I would urge the Malaysian government to make urgent and immediate representations to the Singapore authorities to save this young man from the gallows.

“Malaysia must also be prepared to take all other legal measures available under international law on behalf of Prabagaran,” he added.

Prabagaran's case follows that of the high profile death sentence case of Sabahan youth Yong Vui Kong, who after four years of appeals and prominent public support, eventually had his sentence commuted to life imprisonment in a rare 2013 decision.