The Sri Lankan Navy is said to have apprehended seven Indian fishermen from Thoothukkudi today, on charges of trespass into their territorial waters. <br />''<br />''On Tuesday, 36 others were arrested along with their five fishing trawlers. <br />''<br />''<span style="color: #222222;">Fishermen associations and various political leaders have expressed concern over the spate of arrests by the naval personnel of the neighbouring nation.</span><br />