India's proposed free-trade agreement with the European Union could become operational within four to five months after it is signed, trade minister Piyush Goyal said on Thursday.The agreement is expected to be signed before the end of the year, he said during a visit to Germany, potentially accelerating market-access opportunities and investment flows between India and the 27-member EU bloc.Goyal also proposed an ambitious bilateral trade target of €310 billion between India and Germany, urging businesses in both countries to identify opportunities and prepare to maximise gains from the India-EU trade agreement.India and Germany currently have bilateral trade worth €31 billion.