Unfortunately, there is no 'Late Fees' option in the JEE Main examination conducted by the National Testing Agency (NTA), which essentially means that if you miss paying the money which is required to complete you application, then your candidature will be cancelled, and you will not be given any chance to pay the money using the late fees option.

Thus, it is suggested that you pay the examination fees on time. Hope I have answered your question. All the best!