** Whirlpool of India WHIR.NS falls 3.78% to 913.60 rupees

** Private equity firm Advent International's talks to acquire WHIR for up to $1 billion collapse due to disagreements over valuation, Reuters reports

** Advent had emerged as front-runner to acquire 31% stake in WHIR from U.S.-based parent Whirlpool Corp WHR.N

** However, the acquisition would have triggered a mandatory open for an additional 26% stake under Indian regulations, giving it a controlling 57% stake for $1 billion, report adds

** Advent wanted lower pricing since WHIR faces short-term headwinds in India, including stricter regulations on product standards, report says

** YTD, shares of WHIR down ~50%

(Reporting by Ananta Agarwal in Bengaluru)

((Ananta.Agarwal@thomsonreuters.com))