New Delhi, April 19 -- Two-time Paralympic champion Sumit Antil has levelled allegations of "verbal abuse and mental harassment" against his former coach Naval Singh. Antil has been supported by two-time Olympic medallist Neeraj Chopra who said the coach has also used "abusive language" against him and his family. Both javelin throwers have written to SAI demanding strict action against the coach, who is a Dronacharya awardee. Naval is no longer Antil's coach but continues to train several athletes, including India's rising javelin thrower Sachin Yadav here. "Over a prolonged period I have personally experienced repeated instances of verbal abuse, humiliation and mental harassment under his conduct," Sumit wrote in his complaint on April 10, a copy of which is with HT. "The language used has been extremely degrading, not only towards athletes but also towards our families, including disrespectful remarks about our mothers and even about esteemed athletes like Neeraj Chopra, Navdeep Singh and Sandeep Chaudhary. Such behaviour is unacceptable in any personal environment, especially in a system that is meant to nurture and support athletes representing the nation." Chopra, who is training in Turkey, also sent a letter to SAI supporting Sumit. "I stand in full agreement with my fellow athletes and strongly demand strict action in this matter. The statements made by Naval Singh are not just inappropriate; they are disgraceful. Abusive language directed at me, my family and fellow members crosses every boundary of professionalism and basic human decency. I am shocked and disappointed to hear such derogatory remarks," he said. Chopra urged SAI to take "immediate and decisive" action. "There must be clear consequences for such conduct along with strict accountability to ensure that no athlete has to endure this kind of behaviour again." In his letter to SAI, Antil said he raised the issue through "formal discussion" with SAI officials including TOPS CEO NS Johal. On their part, SAI stated that Naval is not their employee and is training another leading athlete at the national camp organised by AFI. "The complaint has been received. The matter is being duly taken up with the federation," SAI said. Antil said there have been instances where the coach appeared intoxicated during training and created a "hostile and unsafe environment". He said threats related to misuse of authority and false allegations have caused fear among athletes. "This ongoing situation has severely affected my mental well being, dignity and sense of safety and I feel deeply distressed." Antil has called for an inquiry into the matter and requested that the coach be banned from the system....