9 3 5 - 2 0 1 6 ) ▁was ▁an ▁Indian ▁education ist ▁and ▁a ▁mount aine er . ▁While ▁at ▁The ▁Do on ▁School , ▁he ▁led ▁the ▁school bo ys ▁on ▁the ▁first ▁Indian ▁expedition ▁to ▁M t . ▁Ja on li ▁( 6 , 6 3 2 ▁m ) ▁in ▁ 1 9 6 5 . ▁ ▁Education ▁D ang ▁was ▁sch oo led ▁at ▁Modern ▁School , ▁Del hi , ▁and ▁then ▁went ▁to ▁St . ▁Stephen ' s ▁College , ▁Del hi ▁where ▁he ▁received ▁a ▁b ach elor ' s ▁degree ▁in ▁chem istry . ▁He ▁graduated ▁in ▁ 1 9 5 5 . ▁ ▁Career ▁D ang ▁worked ▁as ▁a ▁journalist ▁with ▁The ▁States man ▁in ▁Kol k ata ▁before ▁joining ▁The ▁Do on ▁School ▁in ▁ 1 9 5 9 ▁as ▁a ▁chem istry ▁teacher . ▁At ▁Do on , ▁he ▁led ▁the ▁boys ▁on ▁many ▁mount aine ering ▁exped itions , ▁including ▁the ▁first ▁as cent ▁of ▁Ja on li ▁peak . ▁He ▁left ▁Do on ▁in ▁ 1 9 7 0 ▁to ▁become ▁the ▁principal ▁of ▁The ▁Air ▁Force ▁School ▁in ▁New ▁Del hi . ▁He ▁remained ▁there ▁for ▁seven ▁years ▁and ▁then ▁took ▁up ▁the ▁post ▁of ▁R ector ▁at ▁St . ▁Paul ' s ▁School , ▁Dar je eling ▁in ▁ 1 9 7 7 . ▁He ▁left ▁St . ▁Paul ' s ▁in ▁ 1 9 8 4 ▁to ▁head ▁the ▁Army ▁Public ▁School , ▁D ha ula ▁K