Actually i have created one page for registration in the event.
But some how a person is submitting the form mistakenly filled the data (so he/she has to correct those data)
So person need access to edit after filling the search field (validating the data such as (1)Registration ID, (2) Date of Birth and (3) Mobile number ....
if all three details are correct. a submitter will get access to the node edit. But a person does not require to register for doing this.
Kindly help me to create this type facility for my website.
Thanking you.