ig ar h , ▁P un j ab . ▁There ▁he ▁met ▁the ▁young ▁student ▁Ch it ik ila ▁Mus ili , ▁who ▁later ▁went ▁on ▁to ▁prove ▁interesting ▁results ▁in ▁the ▁geometry ▁connected ▁with ▁the ▁theory ▁of ▁Lie ▁groups ▁and ▁wrote ▁good ▁ex pository ▁books . ▁Ram an uj am ▁stayed ▁in ▁Ch and ig ar h ▁only ▁eight ▁months ▁and ▁he ▁had ▁to ▁return ▁to ▁Chen na i ▁again ▁for ▁treatment . ▁T IF R ▁was ▁his ▁real ▁home ▁and ▁he ▁was ▁back ▁there ▁again ▁in ▁June ▁ 1 9 6 5 . ▁Ar ound ▁this ▁time ▁he ▁accepted ▁an ▁inv itation ▁from ▁Institut ▁des ▁Haut es ▁Ét udes ▁Scient if iques , ▁near ▁Paris . ▁He ▁was ▁bare ly ▁there ▁before ▁he ▁was ▁flow n ▁back ▁to ▁Chen na i . ▁Unfortunately ▁sch iz op hren ia , ▁a ▁highly ▁treat able ▁condition ▁today , ▁was ▁not ▁properly ▁diagn osed ▁and ▁treated ▁at ▁that ▁time . ▁Thus ▁he ▁continued ▁until ▁the ▁end ▁of ▁his ▁life ▁to ▁be ▁highly ▁cre ative ▁for ▁short ▁periods ▁before ▁the ▁rec urrent ▁ill ness ▁over to ok ▁him . ▁Again , ▁in ▁ 1 9 7 0 , ▁he ▁sent ▁his ▁res ignation ▁letter ▁to ▁T IF R ▁but ▁the ▁inst itute ▁would ▁not ▁take ▁it ▁seriously . ▁Ar ound ▁this ▁time , ▁M um ford ▁invited ▁him ▁to ▁War wick ▁as ▁a ▁visit ing ▁professor ▁during ▁the ▁algebraic ▁geometry ▁year . ▁M um ford ▁writes ▁that ▁he ▁spent ▁many ▁delight ful ▁even ings ▁with