There is no single answer for this. You need to do some research, focus on various plans offered, diseases covered and most importantly whether hospitals in your vicinity are empaneled.
You are at the ideal age to take health insurance, you will have lower premium.
Next Steps
Always visit the insurance company’s office and get things done in person
Health Tips
Do not fall for agencies/agents/middle men who could woo you into taking useless plans for higher premiums as high as 25 % more.