"I will not leave this country till a competent authority makes me persona non grata..I am more than glad to live in this country for years to come," he told reporters on the sidelines of a function when asked whether he was afraid that he may be asked to leave the country.
The Italian envoy said competent authorities in his country will give "finest" attention to India's views on the whole issue.
"We are very keen to work in all posible manners with the Indian government. We are two friendly nations...We want to work with Indian authorities," he said stressing that there should be separation of the "critical legal issue" from the bilateral relations.
Italy's refusal to send back its two marines triggered diplomatic stand-off with Prime Minister Manmohan Singh warning Italy of "consequences" for bilateral ties if it did not send them back to face trial.
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The two marines are charged with homicide for killing two fishermen off the Kerala coast in February last year in an anti-piracy operation.
The Indian Supreme Court had on February 22 said the marines are only allowed to travel to Italy and remain there and will have to return to India before the expiry of the four-week deadline.