Cottalorda, India's first foreign coach for women boxers, resigned within a month of taking over, complaining of delay in salary payment and lack of professionalism in the national federation.
The 41-year-old Frenchman, who took over in August, e- mailed his resignation to the Boxing Federation of India (BFI), saying that he could no longer wait for the fulfillment of promises made to him.
Reacting to the development, Mary Kom, a five-time world champion and an Olympic bronze-medallist, told PTI, "It is very disappointing and I am quite shocked. Speaking as an athlete, I can only say that he had been an excellent addition to the camp."
Cottalorda alleged that he repeatedly communicated his concerns to the federation, which did not act on them.
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The federation, on its part, asserted that most of Cottalorda's demands have been met and they would try and persuade him to come back. Ironically, his initial arrival itself was delayed by over a month owing to some procedural issues.
Besides being an experienced coach for women boxers in France, which earned him a three-star rating from the International Boxing Association, Cottalorda has also been a certified coach in the AIBA Pro-Boxing and the World Series of Boxing.
Cottalorda, also a member of the European Boxing Confederation's (EUBC) Coaches Commission, had travelled with the Indian women's team for a training trip to Ireland last month.
He had decided to head back to France at the conclusion of the trip as he was unhappy with the delay in the disbursement of his salary.
His resignation comes as a blow to the women's team, which is gearing up for the Asian Championships in November in Vietnam.