yah civilization mukhyata 2500 B.C. Se 1800 i. Pu. Tak rahi. Aesaa aabhaas hotaa hae ki yah sabhya्taa apane antim charan men hvaasonmukh thi. Is samay makaanon men puraani inton ke prayog ki jaanakaari milati hae. Isake vinaash ke kaaranon par vidvaan ekamat nahin hae. Sindhu ghaati civilization ke avasaan ke pichhe vibhinn tark diye jaate hae jaese: barbar aakramana, jalavaayu parivartan evan paaristhitik asantulana, baadh tathaa bhu-taatvik parivartana, mahaamaari, aarthik kaarana. Aesaa lagataa hae ki is civilization ke patan kaa koi ek kaaran nahin thaa balki vibhinn kaaranon ke mel se aesaa huaa. Jo alag alag samay men yaa ek saath hone ki sambhaavanaa hae. Mohenjo daro me nagar aur jal nikaas ki management se mahaamari ki sambhaavan kam lagati hae. Bhishan agnikaand ke bhi pramaan praapt hue hae. Mohenjodaro ke ek kamare se 14 nar kankaal mile hae jo aakramana, aagajani, mahaamaari ke sanket hae.