Contending that there were "no irritants whatsoever" in Indo-US ties, Prime Minister Manmohan Singh today told President Barack Obama that India had gone "some way" to allay the concerns of US firms by notifying rules for nuclear business and any specific grievance would be addressed within the "four corners" of Indian laws.

The issue came up during the over one-hour meeting between Singh and Obama here against the backdrop of apprehensions among US firms that Indian liability laws were not supplier friendly. "I explained to him (Obama) that we have a law in place. Rules have been formulated. These rules will lie before our Parliament for 30 days."

"Therefore, we have gone some way to respond to the concerns of American companies and within the four corners of the law of the land we are willing to address any specific grievances," Singh told reporters after his meeting with Obama on the sidelines of the ASEAN and East Asia Summits in this island resort of Indonesia.

The rules, which were notified on Wednesday, make it clear among other things that there would be no unlimited or unending liability on part of the suppliers.

Singh said he had also told Obama that India was ready to ratify the Convention on Supplementary Compensation (CSC), another issue that the US wants to be done as part of implementation of the civil nuclear deal.

"That's where the matter stands," he said.

Sources said the issue came up during the course of review of implementation of decisions taken by the two sides. They claimed that Obama did not respond and merely "noted" the Prime Minister's statement.