You would have heard similar stories about how Modi and BJP killed muslims in Gujarat too. All for no reason.
That is how propaganda works. A intelligent man has the ability to see beyond the obvious lies and seek the truth.
If Godhra Train burning was the incident that sparked the Gujarat riot, then it was Bal Thackeray friendship and then rivalry with Varadarajan Mudaliar that started the 'madrasi' campaign. 'Varadabhai' as he was known back then was a Tamilian. (watch the movie Nayakan to know more about him)
Back then Maharashtra's only muslim CM Abdul Rehman Antulay was a big supporter of Dawood Ibhrahim since both of them were form the same village and from the same community.
To oppose him, the indomitable Sharad Pawar started the Shiv Sena by supporting Bal Thackrey and his goon of choice was Dawood Ibrahmis (actually Haji Mastans) rival Varadarajan Mudaliar.
Now Bal Thackrey started out talking about 'marathi pride' while Varadarajan Mudaliar used to organise Ganesh Pandal and other hindu festival and thus became the defacto 'Hindu don' and 'Hindu protector'.
Back then his right hand was 'Rajan' later to be known as 'Bada Rajan' after whom 'Chota rajan' has styled himself. (the same way dawood styled himself after Haji mastan).
Later on when Bal Thakrey realised that 'marathi pride' was getting him nowhere, he tried to elbow in on the role of 'Hindu protector'. But for doing that he need to out muscle Varadarajan Mudaliar and that is when 'Yandu-gundu, Lungiwala madrasi' slang was coined and his supporters who were predominantly lower class Tamilians and Mallus targetted and driven out using the same 'marathi pride' card and muscle.
Thus Shiv Sena became the 'Hindu protector' in lieu of Yandu-gundu, Lungiwala Varadarajan Mudaliar and Bal Thackrey crowned himself 'hindu hriday samrat'
This is the consolidated Facts of the matter. So you can continue to believe in your prejudices that is born of Ignorance or open up your mind and learn as you live and grow as a person.
The choice is yours.