If there were something about jewishness that engendered hatred, there should be examples of Hindus and Buddhists and Taoists etc persecuting them.
To my best knowledge, I know of no examples that can be separated from general dislike of westerners and foreigners.
There is no doubt in my mind that the hostility against jews is confined to the two religions that are offshoots of Judaism: Christianity and Islam.
I have noted before (as have others) that hostility between similar religions seems to be greatest. I liken that to competition between animals with a similar diet: The caterpillar does not compete with the lion, but the hyena does. Jews claiming to be THE chosen people of god is threatening to Christians and Muslims (who claim the same thing for themselves) in ways that it isn't threatening to a Taoist, for example, who would probably just shrug.
As I understand it post temple destruction Jews that dispersed faced the same question Muslims face in the west.
Do you become a citizen of where you live in all aspects, or is your allegiance to the global Muslim community.
Jews always considered themselves apart from the greater culture. Assimilation and intermarriage was discouraged and still is among some conservative Jews.
There are Jewish groups in NYC that are highly self isolated from any contact outside Jews.
They were probably always a small minority in India. Hinduism itself is diverse without any central authority or sect. What we acal India today was and is highly diverse. There was never any central Hindu monolithic authority like the RCC.
http://en.wikipedia.org/wiki/History_of_the_Jews_in_India#Today
'...The majority of Indian Jews have "made
Aliyah" (migrated) to
Israel since the creation of the modern state in 1948. Over 70,000 Indian Jews now live in Israel (over 1% of Israel's total population). There are reminders of Jewish localities in Kerala still left such as Synagogues. Majority of Jews from the old British-Indian capital of Calcutta (Kolkata) have also migrated to Israel over the last six decades...'
http://en.wikipedia.org/wiki/Hinduism
'...The notion of common denominators for several religions and traditions of India was already noted from the 12th century CE on.
[65][66] The notion of "Hinduism" as a "single world religious tradition"
[50] was popularised by 19th-century European Indologists who depended on the "brahmana castes"
[50] for their information of Indian religions.
[50] This led to a "tendency to emphasise Vedic and Brahmanical texts and beliefs as the "essence" of Hindu religiosity in general, and in the modern association of 'Hindu doctrine' with the various Brahmanical schools of the Vedanta (in particular Advaita Vedanta)."
[67][note 27]..'
Keep in mind the Jewish ideology going back to alleged biblical origins is essentially racist and exclusionary. Conversions are not encouraged and acceptance as a Jew is primarily by Jewish genetic history.