Option a is the correct answer Statements 1 and 2 are correct: A marked feature Indus Valley Civilisation (IVC) is the vivid imagination and artistic sensibilities exuded by is correct the numerous sculptures, seals, potteries, jewelleries, etc. found at the excavation sites. Harappa and Mohenjo-daro the two major sites of this civilisation are among the earliest and finest examples of urban civic planning. The planned network of roads, houses and drainage systems indicate the planning and engineering skills that developed during those times. Mohenjodaro, Harappa, Ropar and Kalibangan, Lothal, Rakhigarhi are the main sites of Indus valley civilization. Statement 3 is incorrect: People of Harappa were known about the use of metals. They saw a wide scale practise of bronze casting. The bronze statues were made using "lost wax technique" or "Cire Perdue.