No, that's not it. You'll notice that the surveys is about online tweet. You can see the Chinese result because there people can't post inflammatory stuffs in name of freedom of speech. It's not about only muslim, you will find same result about every other faith if you do that online survey regarding china.
In any online survey will be swarmed by sp12ers, so they being at top isn't that surprising. However, anti-muslim is a notion that needs historical background. Hindus are mentally,culturally, geographically has always been colonized. They are attention seekers. They need something so they can pretend they are part of bigger picture. You will see them jumping on any israeli news in twitter despite most israelis not giving two rat's azz about them. Anti-muslim bs,just like being anti-chinese, gets you noticed by west,whom they worship. Besides that, i would dismiss them as insignificant. Internet is one place hindus can fantasize as being a little supa pawa with relative safety.
As for Pakistan & Nigeria, both has minority christian & Pakistan had trouble with them in past.
You will also need to factor in who are those using twitters in those countries, their background before saying that it's USA, ok UK .
Absolutely. The Hindu nationalists are savage. There have been incidents in Toronto with Koran burnings, other desecration (ie tearing out pages), a Sikh radio host was attacked with machetes, Sikh politicians being heckled, etc.
Actually they are fun things. They are "savage" when they are up against peoples who don't bother with paying them attention. When the babri incident first happened in india, here in my country, there was a massive retaliatory reaction from public. It was literally "paying them back in same coin" . Since then no hindu ever dared to steer up trouble here. As a citizen i don't like these incident. But sometimes it is necessary to let things loose for an hour or two.