You cannot cancel your application. But you have to wait for 24 hours to make a payment for the link to be activated. So you should register at: http://joinindianarmy.nic.in/login.htm again with new email id and mobile number. Please follow the instructions available at our page to fill in the application form: https://medicine.careers360.com/articles/indian-army-bsc-nursing-application-form The first application will be cancelled automatically if you do not make any payment. But you can use the same email id and mobile number to register for Indian Army B.Sc Nursing. If you are not, then try with a different email id and mobile number.