It's probably more for India. Israel seems to only have MRBM or just air launched missiles, and they likely have much fewer warheads than India as well, since Israel can't legally acquire the materials.
Yes. However I do personally think that Israel has a similar number of warhead count as India because they do have access to fissile materials from Uncle Sam. And their nuclear program is more advanced than India's.
My tinfoil hat theory also speculates that Israel probably also gave nuclear weapons technology to India. Enough to advance their nascent nuclear program from the experimental to practical stage. This possibly happened during the Vajpayee BJP administration, who happened to officially make India a nuclear weapons state. So, perhaps this partially explains why the BJP and its Hindutva crowd loves Israel so much.
Israel's handful of nukes just give them a way to revenge the surrounding Arabs in case Arabs start indiscriminately slaughtering them all, or if another Arabic countries assembles and nukes Israel. They're not a MAD or even second strike capable weapon against the main powers.
Yes. Those were supposed to be weapons of last resort. Used in case the very existence of the state of Israel is threatened. However these days, it is being used as a method of blackmail to keep the more powerful Arab countries quiet.
Nevertheless, I do not know how crazy the Zionists will get with regards to using nukes. They are not gonna nuke Palestine, Lebanon, or any neighbouring areas where it is too close for them to be exposed to the fallout. But places like Yemen and Iran could be far enough to be targeted.
While India has openly had ambition to create weapons able to hit eastern China. Just having range though is not enough, and the Indian nuclear program (just like their other military stuff) is not exactly progressing quickly. But it is their long term goal to establish second strike ability against China.
That was the case before the Modi government. These days, I believe that India want to use their nukes to blackmail Pakistan and China. The Jai Hinds have been calling for India to change it's NFU policy to something more akin to the US's preemptive doctrine. Officially, India had not changed its own NFU policy, but can we ever trust India to stick to it? What might they do if India loses a major war with Pakistan or China? Therefore, it was wise for China to build up it's ABM defence around Xinjiang just in case India intends to cheat.