Ravneet Kaur, 29, went missing from the village of Bagge Ke Pipal on the Pakistan-India border while on holiday with her four-year-old daughter on March 14, found dead in a canal in Lehragaga.
Ms Kaur who was pregnant, arrived in India on February 27 to visit her friends and family with her four-year-old daughter.
Ms Kaur had been employed at Tricare in the Gold Coast and was described as a devoted worker and mother and was reportedly expecting a son.
Police have alleged Mr Singh was wanting to move to Canada with his mistress, who is also an Australian citizen.
Her husband, businessman Jaspreet Singh, was in Australia at the time but local police allege he was having an affair and arranged the murder with his mistress.
Punjab police inspector Mohit Dhawan said four people have been charged in relation to Ms Kaur’s death and there were discussions with the Australian High Commission about extraditing Singh to India.
Indian police have claimed Ms Kaur was speaking with her husband in Australia on the phone when she was kidnapped.
Australian Federal Police officers are expected to travel to Punjab to meet with Indian authorities.
Mr Singh denied the allegations, saying, ‘I don’t know what the basis of all these allegations is, I will have to go to India and find out what happened. I have no role in this whatsoever.’