Dravidians are tricky to play, in feudal age you can go for a great archer/skirmisher rush, maa archers is also effective.
In castle age everyone knows your mango weakness so I’d not commit heavily to raiding and go for a defensive castle and start massing urumis, long swords, skirms, eles or whatever you’re aiming for.
Make sure to have a siege workshop and a university to quickly get bombards and then push.
In imperial age you’ll be able to demolish everything with wootz steel so get it asap, and also get your mango counters ready.
If you need to go for a big push use your siege eles which regen.
Don’t feel like you need to use wootz steel, you’re supposed to have a big amount of late game options, not be forced into champions like you’re vikings or something.
Generally castle age is the worst age for dravidians because your opponent already made 50 scorpions and killed all your crossbows.
Also if you’re against dravidians keep them off stone for as long as possible.