"The incident in Kochi, Kerala, is shameful and unnecessary. The party will not shield or endorse such acts," Yuva Sena president Aaditya Thackeray said.
"The persons involved in the act in Kochi have been suspended from the party membership indefinitely," he tweeted.
Action was taken hours after TV channels aired a video showing a group of marching Shiv Sena activists, wielding sticks and chasing away young men and women from Marine Drive.
Earlier in the day, six activists of the Sena were taken into custody in connection with yesterday's incident which has come in for criticism from the ruling CPI(M) and the opposition Congress in Kerala.
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