When fighting the Timurids I have found it best to boost the number of Polish Nobles in your stacks for elephant killing to about 8. Generals are worthless in these battles so it is best to just take your tried and true horsemen to the battle.
Place your Shooters in open formation two ranks deep but in a double line. The depth and low density helps killing the units ahead of the elephants.
With the Pns turn off the fire at will before the battle starts but keep them all in a place you can use them to support the archers when the elephants come. Two units will waste a formation of elephants in seconds and still have ammo left over to help later. Send only two Pns at a time to dispatch a unit of elephants. Ammunition is critical and should not be wasted.
Once the elephants are all dead then the Pns become your knights to chase down infantry or help your archers caught in battle. When all the elephants are dead these guys are no better than anyone else and die really nicely.
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