just saw the episode and i think that nandu was shot in the shoulder and not in the chest and he was shot just once ..the other shots were just sound effect that was created for an impact and i am very much sure now that
one,either arman will save him and thus nandu will realise thata rman is a good man and he can never do that or
this one seems likely
thata rman goes to meet wally and wally insults him big time and arman is shell shocked and goes out and sees nandu hurt and goes and rescues him and saves him.Thus jassi gets to know that arman saved nandu inspite of her insulting him or she will hear arman say something to nandu
3rd possibility
arman goes to karishama fashion house to meet the owner,jassi comes to know truns back the chair waiting to hear arman plead to her and then reveal herself as the owner
arman will start on how much gm means to him and jassi and aakhri nishaani stuff and jassi realises how much arman loves her and cries and at the same time,arman finds out its jassi and walks away shell shocked and nandu drama will happen
butone thing nandu got shot in the shoulder only and only once and he wont die