Gurugram, Oct. 6 -- A 12-year-old boy was allegedly stabbed to death by a 13-year-old boy following an argument while they were playing outside their homes in Faridabad's Sector 56 on Sunday night, police said on Monday. The victim was playing with his one-year-old sister outside his home in Block 14 of Ashiana Flats around 7.30pm when the other boy, who lives in Block 13, joined them, police said. A senior police officer said the two boys got into an argument after the victim playfully slapped the 13-year-old while they were joking with each other. The argument turned into a scuffle. htc...