Sidhartha V Mallya, son of Indian entrepreneur Vijay Mallya, has left his role as non-executive, non-independent director at United Breweries Holdings.

In a filing to Bombay's stock exchange today, UB Holdings said that Sidhartha "vacated the office of director," effective 31 March. The filing did not give any further details. 

In a Tweet earlier this week, Vijay wrote: "My son Sid does not deserve all this hatred and abuse. He has had nothing to do with my business. Shower abuse on me if you must but not him." Vijay is the chairman of UB Group, which is held by UB Holdings, and recently stepped down as chairman of United Spirits after its takeover by Diageo.

UB Group also comprises Kingfisher Airlines and United Breweries. Last month, United Breweries started production at its recently-purchased facility in the Indian state of Rajasthan. In an annual report, released last September, United Breweries said its market share in the 12 months to the end of March 2015 hit 52.5%, from 51.3% in the corresponding period a year earlier.