A person flying over India observed the natural vegetation below changing in the specific sequential order of tropical evergreen forest, savanna, dry deciduous, and deciduous. This flight path corresponds to a journey from:

Travelling from South to North from Trivandrum (Kerala) toward Delhi cuts across multiple climatic zones. It begins with high-rainfall tropical evergreen forests in the Western Ghats region, transitions through savanna-type grasslands, moves into the dry deciduous stretches of Central India, and enters deciduous belts.