Two surprising things:

One maybe not so surprising......the demonstration.........as this part of the world looks for harmony ,even as much as Buddhism stand far apart from Judaism.

The second one: about the sikhs.

I must admit that I only heard about the name before [ I think in connection with suppression and "pogroms"] , but that was it. We are recommended [even forbidden] not to "research" other religions, dependent one who we are [ The Ramban had to study the christian dogmas as he had to defend himself against the catholic clergy before King Jayme 1 of Aragon ]

[ an English youtube dramatization of the disputation:

https://www.youtube.com/watch?v=3fA5QvaYN1s&list=PLrsJXXr9twis10q5ZSqQ9eeQEFL_-BXnR]

I looked up what this group [sikhs] stand for [why they should be "pro-Israeli"] and I was very surprised about what I read .

I send you a link about this monotheistic group if you want to know.   http://www.bbc.co.uk/religion/religions/sikhism/

How far away from what is preached by most of the Muslim preachers with the Koran in their hand.

Interesting would be to compare the teaching about the B'nee Noach [as described by Judaism] to this group!

20,000 March in India in Support for Israel