MUMBAI, Sept. 24 -- A 23-year-old man who stepped in to reason with his father during a family quarrel was allegedly stabbed to death by him at their home in Lohare Deulkond near Poladpur on Tuesday night. Police said the father, who had been cutting onions in the kitchen, allegedly grabbed the same knife during the ensuing scuffle and stabbed his son in the chest. He was arrested within a few hours. The deceased, Sahil Sachin Chikne, was at home when his father, Sachin Bajrang Chikne, returned after an argument with his wife, Sandhya, 40. According to police, the couple had gone to Poladpur to buy household items. Sachin allegedly left the area after an argument, and the two later returned home separately. After reaching home, Sachin went into the kitchen while allegedly abusing the family. Sahil then went into the kitchen and tried to reason with his father. A scuffle broke out between the two, following which Sachin allegedly picked up a knife and attacked Sahil. The 23-year-old succumbed to his injuries, police said....