While Siwal's was the first case of an Indian staffer being targeted by ISI in one of the P5 countries (permanent members of the UNSC), an IFS-B officer in the Indian mission in Islamabad, Madhuri Gupta, was earlier trapped by ISI and later arrested in India. Siwal may have been targeted by ISI even before he was posted to Moscow and may have continued to work for Pakistan from there, said people familiar with the matter.
