If you assume that the priest isn't sent by Senapati, what he speaks makes technical sense in a weird way.
Their marriage will affect the time line- true.
Dhruv's "death" is certain because he is technically wiping himself out of the timeline by going to the 17th century (and possibly staying there by marrying her)
And that "death" comes by Bhaiji because he is encouraging the marriage, and creating a new timeline where the current Dhruv probably wipes his future self out of existence.
Matlab finally makers ke mind mei time travel ke complications aa gaye?
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