Now there is neither any upper age limit for appearing for NEET nor is there any cap for no.of attempts at NEET, Rashika. So as long you fulfil the minimum age criteria and aggregate against tour Category, you are eligible for appearing for NEET. Use the link: https://ntaneet.nic.in/Ntaneet/Registration/NewReg.aspx for registration and You can check the complete application process at our page, https://medicine.careers360.com/articles/neet-application-form.