Nirmal is in Dubai, so I don't feel qualified to offer any suggestions.
However, here in the US, Hagerty is a great company. As long as you have another daily driver car, and keep the antique in a closed garage, you can insure it for about $160. Before I did all the work on my car, I had an agreed value of $15,000 with comprehensive, collision with no deductible, and up to three 50-mile flatbed tows a year for $152. I can't drive the car for work but there are no annual mileage restrictions.
After the engine and paint, I called them and bumped the value to $25,000 and the policy went up less than $40. Great, friendly customer service.
Ray
'68 280SL 4-spd Coupe