there is any problem if I enter neet center after proper entering time??

Hi , it's better to reach before time at the examination centre to avoid any kind of hassle at the centre. If you reach after 1:30 PM then you won't be allowed to sit for exam . So it's better to reach early  so as to avoid contact with people keeping your safety in this pandemic situation in mind. Do. Not forget to take your mask and gloves along with 50ml sanitizer with you.
Hope this helps