Tasmac — Cursing on bad words and group of people attacking physical, for asking why 40 rupees extra for a bottle

Address:

Elite Tasmac outlet in Adayar shop No. 974,

Elite Tasmac outlet in Adayar shop No. 974,

I bought Louis Verant 750ml they told the price is 960 rupees but it is mentioned as 920 rupees. I was asking only 20 rupees, because I know for every 180ml they chager 5 rupees illegally high.
When I asked atleast give me 20 rupees the shopkeepers almost 5 people inside the shop grill door told it was swiping charges on the debit card. As I am working in banking sector I knew about it and then one shopkeeper told it is our swiping charges 40 rupees extra. Then after they starts to speak bad words and came out of grill door attacked me physically, so when I start to record these events on my mobile one of the shopkeeper pushed my mobile out of my hand, in which my mobile got damaged and my nose got injured.
I request to take action on these shopkeepers people for acting rudely against me. I am attaching the swiping SMS came to my mobile, because they didn't provide me bill. If required I will provide the bottle batch number too for evidence.