 <translate> To answer the above question, the relevant sentence is: The Indus Valley Civilisation (IVC) or Harappan Civilisation was a Bronze Age civilisation (3300 -- 1300 BCE; mature period 2600 -- 1900 BCE) mainly in the northwestern regions of South Asia, extending from what today is northeast Afghanistan to Pakistan and northwest India. So the final answer is 3300 -- 1300 BCE ; mature period 2600 -- 1900 BCE. <yor> Lati dahun ibeere ti o wa loke, gbolohun ti o yẹ ni: Ilẹ-ilu Indus (IVC) tabi Ilu Ilu Harappan jẹ ọlaju ti Ọdun Idẹ (3300 - 1300 BCE; akoko agbalagba 2600 - 1900 BCE) nipataki ni awọn agbegbe ariwa iwọ-oorun ti South Asia, ti o gbooro lati ohun ti o wa loni ni ariwa ila-oorun Afghanistan si Pakistan ati ariwa iwọ-oorun India. Nítorí náà ìdáhùn tí ó kẹ́yìn ni 3300 - 1300 Ṣáájú Sànmánì Kristẹni; àkókò tí ó dàgbà 2600 - 1900 Ṣáájú Sànmánì Kristẹni. 