You may be needing state covid 19 travel pass of every state you cross till you reach goa including permission by delhi state authorities . You may also have to give details of your travel plans to seek permissions like date of departure , reason for travel and duration of stay . You may also be quarantined for 14 days when you reach goa . You may apply for passes online.
A covid negative test (72 hours), state e-passes will be a must. Also the rules will keep changing at the different check posts as they will be in different states and regions. Please keep all this in mind.