Point is when they have much more effective, easier ways to blow things up why would they want to use made in India PTA. Few quick points,
- PTA cannot be used as an explosive, technically everything is explosible (including the food grain dusts), doesn't mean they can be used as explosives. You can get it to explode in lab conditions, but that doesn't mean you can replicate that just where ever you want.
-PTA is produced and very easily available in Pakistan, makes no sense for them to specifically use Japanese PTA made at its Indian plant.
- Indian made PTA is legally exported to Pakistan and is on the positive bilateral trade list.
-There are other much more potent chemicals and explosives available in Pakistan which the terrorists group very commonly use. No known use of PTA to make bombs or cause explosions anywhere in the world, except for controlled explosion in labs.
I rest my case.