It is not mandatory to carry a passport to travel with flight, you can keep it with you. Voter ID is also an alternate ID proof which you can carry with you.Below are the list which you can carry.
- Voter ID
- Aadhar Card (only for senior citizen above 60 Years)
But it is recommended that if you have passport than please carry with you. Also for people having a baby, try to carry original birth certificate with you.
*No VISA is required for Indians.