The historic agreement would now need to be ratified by governments of individual member countries, including India, for coming into effect which is expected some time next year.
After years of impasse, this is the first major pact reached by WTO members since the multilateral trade body came into existence in 1995.
The WTO's General Council, the highest decision making body met in Geneva today and accepted India's demand for extending the peace clause till a permanent solution is found for its food stockpiling issue.
Today's extension is crucial for India to meet over Rs 1 lakh crore a year food security programme, which needs 62 million tonnes of foodgrain in a year.
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This will enable India to continue procurement and stocking of foodgrain for distribution to poor under its food security programme without attracting any kind of action from WTO members even if it breaches the 10 per cent subsidy cap as prescribed by the multilateral trade body.
It was also agreed that a "special session" on agriculture will negotiate the permanent solution and try to arrive at a solution by December 2015, they said.
For a permanent solution to the food security issue, India has proposed either amending the formula to calculate the food subsidy cap of 10 per cent or allowing such schemes outside the purview of subsidy caps.
India had earlier refused to ratify the TFA in Geneva in late July till demanding that WTO members find a permanent solution to the issue of public stock holding of foodgrains to feed its poor.
On November 13, India and the US resolved their differences over the public stock holding issue at the WTO, paving the way for implementation of the pending TFA to ease customs norms.
Under the peace clause, a WTO member gets immunity against penalty for breaching the food subsidy cap. As per the WTO norms, a developing nation can provide food subsidy of up to 10 per cent of the total farm output.
The TFA is being pushed by the US and other developed world as they seek to bolster their sagging economies through unhindered international trade by way of a uniform and easy procedures at customs.