Top United States experts have expressed concern over Pakistan's decision to give death penalty to Indian national Kulbhushan Jadhav as they warned that Islamabad wants to send a 'strong message' to India against isolating it on the world stage.

"Apart from the gross irregularities in the Jadhav situation, such as the lack of consular access and the secrecy surrounding the surprise court-martial, what struck me the most is the contrast between the speed of Mr Jadhav's trial set against the endless postponements for that of the Mumbai attackers," Alyssa Ayres, a former senior State Department official in its South and Central Asia Bureau said.

"The latter case, by contrast, has been in a continual state of prolongation for nearly nine years," Ayres said.

She is currently senior fellow for India, Pakistan and South Asia at the Council on Foreign Relations, a top American think-tank.

Bharat Gopalaswamy, director of South Asia Centre at the Atlantic Council, a Washington, DC based top US think-tank, believes that the evidence warranting Jadhav's conviction 'is rather flimsy' and the story by the Pakistani authorities 'do not add up'.

Without furnishing further evidence, this conviction as it stands, 'seems to be politically motivated' in order to counter India's aggressive diplomacy against Pakistan in combating terrorism, he said.

"This whole story is shrouded in mystery and uncertainty, but it seems clear that Pakistan wants to send a very strong message to India, whether to warn New Delhi against meddling in Pakistan or to push back in a big way against India's efforts to isolate Pakistan on the world stage," said Michael Kugelman, deputy director and senior associate for South Asia at the prestigious Woodrow Wilson Center.

"At the same time, given how much India will want to ensure that Jadhav isn't executed, Pakistan now has a very large bargaining chip at its disposal. Pakistan may want to use Jadhav as a trump card to get some type of major concession from India," Kugelman said.

"The bottom line is that India-Pakistan relations are on life support. We can kiss goodbye any immediate prospects for resuming dialogue, though that wasn't a very strong possibility even before the announcement about Jadhav's death sentence. Ultimately, India and Pakistan face some very dark and dangerous days ahead," he said. -- PTI

IMAGE: Congress workers protest in Mumbai against Pakistan for sentencing former Indian naval officer Kulbhushan Jadhav to death. Photograph: PTI Photo