Actually, Assassination is not well related with election, it has been ongoing for long time now. It seems like Doval has taken some serious inspiration from bollywood. Whatever be the reaction, the backbone of militants have been broken badly. Also, Kashmir is watching what is happening in Gaza and how entire muslim world is quiet as a grave. There is no united front against Israel. As we speak Israel has completely flattened north Gaza and yet leaving perhaps Iran no one uttered as much as a word.
If anything, these events will have a chilling effect on Kashmiris. If Gaza, the core of Muslim resistance can be crushed and killed, whats there to hope for Kashmir?
As far as Modi goes, he has his ducks all lined up. Ram Mandir, Economy, "Ghar Mein Ghus Ke Marenge", 370 abrogation, Muslim personal laws... everything. It also helps that opposition in India is totally broken and one (mis)trick pony with no leader to stand up to Modi.
Actually, if the goal was just election, last time was very successful.
And presetly, Joe Biden and Trudeau have given the white stamp of approval to Modi. Not even China dares to assassinate dissidents in Canada and USA. India did. The literal "Ghar Mein Ghus Ke Marenge". Whatever be the foreign policy cost, the domestic part will pay greatly to Modi. He delivered on the terrorism promise.
Also people do not realize how small 1000 SQ KM is... Its not even 50 KM x 50 KM. It sounds very nice to hear but really, China has not done much.
That being said, Modi will not really do anything similar to 2019 at all. He rather does not need to do anything. He has no opposition right now. If anything 2024 is going to a bigger victory for Modi than 2019.