Cognizant — I selected wrong college name in my written exam

Address: 517501

Hi i selected in cognizant oct 2019 off campus tirupati but in online written exam i selected my college name was wrong then how can i change my college name and i got pre joining mail from cognizant and i completed 20 tasks. My college name is sri venkateswara college of engineering, tirupati (Svce) but by miss i selected sri venkateswara engineering women's college (Svew)