I paid for jee main 900rs fee but my 1st transaction failed due to serve issue On 2nd try its was successful.next day (900 +900)is removed.
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Wait for at least 10 to 15 days since registration process recently got over and in FAQs, they mentioned that it may take around 10 to 15 days to credit back any extra money deducted so don't worry and don't do anything just wait for some time You will be charged only once.
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This is a server related problems, in this issue your fault as well NTA fault is also not there, so in such cases you need to draft a mail to the respective official of NTA authority regarding your server issue, they will definitely gonna help you in this.
All the best
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Try NowIt will be auto refunded into your account or else toy will have to issue to mail in order to get the refund.
I hope this helps.