Everything, Everything

I was reading this article about how the deputy mayor of the Indian capital Delhi has died a day after being attacked by a horde of wild monkeys. It's tragic, and sounds bizarre, but apprently there's a plague of monkeys, which invade government complexes and temples, snatch food and scare passers-by. The High Court demanded the city find an answer to the problem last year, and one one approach has been to train bands of larger, more ferocious langur monkeys to go after the smaller groups of Rhesus macaques.

Did they learn nothing from the Old Lady?!?

There was an old lady who swallowed a cow.
I don't know how she swallowed a cow!
She swallowed the cow to catch the goat...
She swallowed the goat to catch the dog...
She swallowed the dog to catch the cat...
She swallowed the cat to catch the bird ...
She swallowed the bird to catch the spider
That wriggled and jiggled and wiggled inside her.
She swallowed the spider to catch the fly.
But I dunno why she swallowed that fly
Perhaps she'll die.

So they've trained larger and more ferocious animals how to kill. What will they do to get rid of the langur monkeys? Train an ambush of tigers? And then get humans to kill the highly trained ferocious tigers?