uan ▁in ▁New ▁Del hi , ▁where ▁he ▁remained ▁till ▁ 1 9 9 0 . ▁After ▁ret iring ▁as ▁principal ▁in ▁ 1 9 9 0 , ▁D ang ▁served ▁on ▁various ▁education ▁bo ards ▁and ▁worked ▁towards ▁establish ing ▁model ▁primary ▁schools ▁in ▁rural , ▁trib al ▁and ▁trib al ▁areas ▁of ▁India . ▁ ▁Mount aine ering ▁exped itions ▁While ▁at ▁Do on ▁School , ▁D ang ▁led ▁the ▁school bo ys ▁on ▁many ▁mount aine ering ▁exped itions . ▁Having ▁failed ▁thr ice , ▁D ang ▁led ▁the ▁first ▁successful ▁expedition ▁to ▁Ja on li ▁( 6 , 6 3 2 m ) ▁with ▁the ▁school bo ys . ▁In ▁ 1 9 6 2 , ▁D ang ▁was ▁a ▁member ▁of ▁the ▁first ▁non - S her pa ▁Indian ▁expedition ▁to ▁Mount ▁Ever est , ▁which ▁was ▁led ▁by ▁John ▁D ias . ▁Due ▁to ▁a ▁snow ▁bl izz ard , ▁the ▁party ▁had ▁to ▁turn ▁back ▁ 1 5 0 ▁metres ▁from ▁the ▁sum mit . ▁ ▁Awards ▁D ang ▁was ▁awarded ▁the ▁Pad ma ▁Sh ri ▁in ▁ 1 9 7 6 ▁for ▁his ▁services ▁in ▁education . ▁ ▁References ▁ ▁Category : The ▁Do on ▁School ▁fac ulty ▁Category : St . ▁Stephen ' s ▁College , ▁Del hi ▁al umn i ▁Category : Ind ian ▁mountain ▁clim bers ▁Category : 1 9 3 5 ▁birth s ▁Category : 2 0 1 6 ▁death s <0x0A> </s> ▁The ▁brown sp otted ▁cat sh ark ▁(