Hello candidate!
I hope you are  talking about your EAMCET login ID here because there is no such  email on the eamcet site since you have lost your login ID password no worries I don't need to be much tense there will be an email provided on the main site of EAMCET you can refer to that email and write to them about the loss of your login ID password or there will be a many contacts that will give help to you in the case when you have forget your login ID password you should just verify that phone numbers and make a call to them they will respond it or else if they don't respond you try visit there main branch they will help you out of this.
Hope this will guide you!
Regards!