India will brief the IAEA board of Governors on the safeguards agreement and other aspects of Indo-US nuclear deal tomorrow in Vienna ahead of the board's scheduled meeting on August one to reach a consensus on giving a waiver to India to do civilian nuclear trade.

"There is a briefing scheduled on Friday afternoon at a location outside the IAEA. The invitation was distributed by India to Board members," IAEA spokesperson Melissa Fleming said in an email message.

Foreign secretary Shivsankar Menon will lead the Indian delegation to brief them the safeguard agreement reached between India and IAEA. Other members of the delegation are the chief negotiator of the safe guards agreement R B Grover, who is also the Director, Strategic Planning of the department of Atomic Energy and Indian Ambassador in Vienna Saurabh Singh.

The IAEA spokesperson said earlier they were informed that India has decided to cancel their briefing but later clarified that India will hold the briefing outside IAEA.

Once BOG reach a consensus on the agreement, then it will be taken up by NSG to give clean exemption for nuclear trade and this meeting will possibly be held next month, sources said.

After that is done, the Indo-US deal will be placed before the US Congress for its approval in September before the deal is actually operationalised, the sources added.