** Shares of Indian broadcaster Sun TV Network SUTV.NS down 3% to 593 rupees
** Local news outlets, including newspaper The Hindu, report Indian lawmaker Dayanidhi Maran has sent legal notice to Kalanithi Maran, his brother and chairman of Sun TV
** Notice alleges irregularities tied to Kalanithi's ownership in the company
** Dayanidhi Maran and Kalanithi Maran did not immediately respond to Reuters' requests for comment
** YTD stock has lost 14%
(Reporting by Hritam Mukherjee and Sethuraman NR in Bengaluru)
((Hritam.Mukherjee@thomsonreuters.com;))