"My interest will get changed because number of tariff lines (products) will change (now). I will calibrate and the EU will also calibrate. Now they would reassess and we will also reassess," Commerce Secretary Rita Teaotia told PTI.
She was replying to a question about the impact of Brexit on the ongoing negotiations between India and EU on free trade agreement.
Teaotia said recalibration is required as some items of interest to Britain may have to be removed.
"Not at all. There has been a lot of work done, there may be some modifications, moderation because of the work began in 2007 and we are in 2016 now. So certainly the world is some what different. Our policies have emerged...So the parameters of the discussions will be somewhat different.
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"UK exit will certainly affect our interests that means what are those lines (or products), we are interested in, that will certainly have some repercussion. We will be studying that," she said later in the evening.
On the FTA issue, Commerce and Industry Minister Nirmala Sitharaman said: "I would think, they (EU) would need time now to assimilate this outcome. Once they assimilate the outcome, they will only then respond...I will talk to my counterparts."
The talks have been held up since May 2013 as both the sides are yet to bridge substantial gaps on crucial issues. Although top officials from both the sides have met, but they have not yet fixed any date to resume the talks.
Sitharaman also said the first impact would be visible on currency volatility as there is a possibility of devaluation of the pound and euro.
She said India is in a position to face the eventuality of this outcome.
"We will however have to keep watching currency based volatility, both in the short and the medium term and also look at the impact on overall trade itself," Sitharaman said.
The bilateral trade between India and the UK stood at USD 14 billion in 2015-16 as against USD 14.33 billion in 2014-15.
India has received USD 23.10 billion FDI from Britain during April 2000 and March 2016.
the UK, the Commerce Secretary said: "Once the entire terms and conditions of the UK exit are clear, (then we) would have the complete knowledge of where the UK stands and then it would make sense for us to look for a trade agreement. Meanwhile, we have been trading with the UK."
Teaotia added that immediately there would be no impact of Brexit as "we do not have any trade agreement in existence currently with EU".
"We are trading on a bilateral basis and we will continue to do so. What we will need to do is, watch how the equations and the road map of exit of the UK from the EU. How does that shape up and what would be the implications of that," she added.
"The exporters feel that when we start negotiations with the UK immediately for FTA, we could get the early bird advantage and could increase our trade significantly," TEA said in a statement.