Mumbai University — I want to put paper for evaluation of physical Chem sem5

Respected sir, l am writing this to know whether there is any possibility to give paper for reevaluation. Lm from ismail yusuf college mumbai, l got very poor marks in my physical chem though i performed really well in but l got only 33 marks in external. Because of this there is effect on my result, can u plz suggest me what to be do now, lm ready to pay extra charge also.