Thisstudy aimstodiscoverhistoricaltrendsandchangeofform ofallstupasin India with observation of field study thatis as directas possible,by classifying, analyzing, andsynthesizing thestupas.Study ofIndianstupainKoreahasanumber ofshortcomings since only introductory partialapproach has been made in orderto seek the origin ofKorean pagoda.This study also aims to correcterrors ofstupa terminology in Chinese character committed by misinterpretation of Hindilanguage whichwasestablishedbyprecedentJapanesescholarsseveraldecadesago. Piled-up stupasweretotally destroyed by pagans,thereforetheirremainstellus only ofstructure,material,sizeand disposition.Howeverremains ofcarved stone at torana and drum give us clues as to the originalform ofstupa and worshipping activity,aswellaschangetoamoreluxuriousform. Many rock cavestupasofIndiashow usboth simpleformsmatching theascetic age ofearly Buddhism and luxurious changes in Mahayanan era introducing us to statuesofBuddha.Indiansrecoveredthesphericform of'anda,'aHinditerm meaning cosmic egg,from the hemispheric form ofthe piled-up stupa. Therefore we might discardtheerraticterm of'bokbal',whichmeansanupsetvessel. Railingsandparasolsbecamemainfactorsofstupadesign.Carvedrailingsaround stupabecameasignofdivinity.Seriousworshippingactivitymadedrumslongorhigh and created multi-embossed stripes.Bases ofcircular drums of some cave stupas changedtheirshapestorectangularoroctagonal.Singleparasolsbecamemultiparasols ofaffluentflowerlike curved stems on carved stupa.Multistoried,elongated and high parasolsofGandharastupasareclosely related tosuch factorsasdiversechangesof form in Indian subcontinent.Four-sided toranagateand ayakacolumn ofthecircular form oforiginalstupassuggesttherectangularform ofsubsequentEastAsianpagoda, and higher and wider base of Indian stupas became the origin of East Asian rectangularpagoda.