Explanation

Dr. S Jaishankar represented India at the 23rd SCO Council of Head of Government Meeting in Pakistan because he is India's Minister of External Affairs and typically represents the government on such international platforms. Sushma Swaraj was a former minister and not the representative for this specific event. Narendra Modi is the Prime Minister, but Dr. Jaishankar is the designated representative mentioned. Rahul Gandhi is a political leader and not the official representative.