Hi ,

The correction facility will be opened upon the requests received for application correction. Correction window will be opened in the month of June 2019. Candidates are able to make correction on working days between 10 AM to 4 PM. Request for correcting the mistakes must be followed with applicable processing fees of Rs. 500. If this is not possible,  then you cannot make online correction.  You will have to contact the required authority and enquire. If not , you will considered along with general category.  No quota will be provided if you cannot produce required certificates. 

For detailed information check this link. 

https://engineering.careers360.com/articles/ipu-cet

Hope this was helpful. 

For further queries please approach careers360.