Look at the leaves: Needle-like = Deodar cedar; broad and glossy = Sheesham.
Check the bark: Smooth and peeling = Eucalyptus; dark and ridged = Acacia.
Notice the shape: Tall evergreens mark the Mountains; wide, shady crowns dominate the plains.
Watch the seasons: Gulmohar explodes in red blossoms in Spring; Chinar turns golden in Autumn.
Build memory: Keep a small trail journal, leaf shapes, or describe bark texture.