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VIP 2 actor Dhanush spotted at Mersal audio launch.
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The film's audio launch event held on Sunday in Chennai.
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"Mersal" features Vijay in a triple role -- as a Panchayat head, a doctor and a magician.
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The film also stars Kajal Aggarwal, Nithya Menen, Samantha Ruth Prabhu and SJ Suryah.
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"Mersal", which will have simultaneous dubbed Telugu release, is set to hit the screens this Diwali.