NEW DELHI, April 26 -- In a major breakthrough, the National Investigation Agency (NIA) on Thursday arrested one person accused in the March 2023 case related to the violent attack on the High Commission of India in London and unlawful activities during the subsequent protests.Inderpal Singh Gaba, a resident of the United Kingdom's Hounslow, was arrested in Delhi. He was allegedly involved in unlawful activities during the protests that took place on March 22, 2023."NIA investigations in the case so far have revealed that the incidents in London on March 19 and March 22 last year were parts of a larger conspiracy to unleash vicious attacks on the Indian missions and its officials. The attacks in London in March 2023 were found to be in re...