If Hafiz Saeed is a terrorist, there's a way to go about getting him extradited to India. It's called INTERPOL...and it's called submitting evidence. Either India is unaware of Interpol's presence or they're just milking this Hafiz Saeed thing no different than the "cross border terrorism" conspiracy theory that India peddles out in Indian occupied Kashmir to justify its 1 million troops in the IOK.
If India approaches Interpol, and gets an international arrest warrant issued, then Pakistan will happily hand him over.
But India will India...no matter what.
The same argument does for India's accusation of Pakistan's "cross border terrorism" in IOK. If indeed it's happening, the UN Security Council is available at India's disposal. Approach the UNSC and make your case to the world.
But India will India...no matter what.
As for Hafiz Saeed himself, the guy is an Islamist cancer and I hope he's taken out. He uses the Kashmir dispute to gain popularity, but he's no different from any other mullahs. Don't trust these mullahs.