i had registred for IIT Bombay FOSSEE Mapathon on march 30.We had choosen the topic as waste segretion and collection points as we are in a hurry to select the topic,but after working on that topic we got a another idea better than this .so is there any possibility to change my topic?

i have gone through the mail you have sent on the day i had registred to edit my response but unfortunatly i could not edit it mentioned to try contacting the owner.so please check and tell me if i can change the topic in order to present my idea.