The stress that you’ve facing is naturally valid, esp in Indian market/mindset where people think gaps are some major red flag - as if we have jobs lying around and we aren’t interested in joining!!
Anways, always answer with confidence first - if you’re hesitant they can easily tell that. You haven’t committed a crime so be proud of whatever you have till now. Next, you can always say things like - you were freelancing on a retainer, or working on a project in family business, working as independent consultant with a client, etc. until the correct fit of company and projects came up.
But most important- Confidence- i stress again on this!! Its a crazy and saturated market so dont blame yourself ever!