My running is around 2,500 to 3,000 kilometres every month. I currently drive an i20 CRDi diesel and have covered 3,70,000 kilometres over the last 15 years. Which would be a better choice for me, a strong hybrid or an electric vehicle? Should I wait a little longer for better models?

An electric vehicle will prove to be far more economical for you if you primarily plan to charge it at home. Most new-age EVs like the Mahindra BE6, Hyundai Creta EV and Tata Harrier EV can comfortably handle highway trips of around 300–400 km on a single charge. So yes, if you have access to home charging, an EV would be the better choice for you.