Seeking to clear the air on the controversy over allocation of S-Band spectrum, prime minister Manmohan Singh today said the deal to allocate transponder frequency on two satellites to the Indian arm of a US firm never came to his office for approval.

"There is no question of prime minister's office (PMO) being asked to approve the deal. It never came to that level," Singh said.

He was intervening during question hour in Rajya Sabha when opposition members sought to know who in the PMO was responsible for approving the deal between Devas Multimedia Pvt Ltd (the Indian arm of Forge Advisors of US) and Antrix Corp, the commercial arm of ISRO.

Antrix, he said, is a commercial arm of ISRO and in normal course its deal with Devas does not go to the government for approval.