What is the name of the world's longest river cruise launched in Jan 2023 in India which starts from Varanasi and ends at Dibrugarh?1Ganga Brahmaputra Cruise2Brahmaputra Vilas3Ganga Vilas4Ganga Brahmaputra VilasAnswer & explanation+Correct answer: option 3Ganga Vilas, world's longest river cruise.