Who could benefit from that terrorist attack?
Answer. BJP and Indian PM Modi.
India has 700,000 army persons in a small valley of Kashmir. Their intelligence service (R&W) has infiltrated all the terrorist orgs in Kashmir and conducts such bomb blasts for political gains whenever required. Modi required right-wing votes so required war-hysteria and jingoism which lead to all this situation.
War drums are banging too loud in India. Their media/social media/celebrities/politicians every one is creating war hysteria. In Pakistan, everyone is asking for peace and only peace. Don't go for my words, check twitter/facebook/youtube yourself and find out.
Example 2: Here is an Indian who predicted the same 2 years back
"A serious thought - is BJP planning a war like situation with Pakistan just before next parliamentary election to win absolute majority?"
https://twitter.com/t_d_h_nair/status/1100274052617392128
Example:
https://twitter.com/AsharJawad/status/1072387135485943808
"After BJP defeat in state elections & Pakistan's masterstroke in Kartarpur, Indian estab. is on backfoot. Don't rule out false flags in Kashmir & India (esp. INC ruled Punjab) followed by border skirmishes with Pak to revive Hindutva nationalism ahead of 2019 G.E. Ram Mandir too."
A fool's election winning strategy is putting more than a few billion people at risk of nuclear apocalypse!
Note that the Pakistani analysts predicted this a long time ago (Indian opposition parties also understand this) that the Indian PM Modi would create a war like situation with Pakistan before their upcoming elections.