In a shocking incident, a 36-year-old man stabbed his wife to death after she refused to follow Islamic tenets or wear a 'burqa', the police said on Tuesday. The incident occurred on Monday in Tilak Nagar where the accused, Iqbal Shaikh, his former Hindu wife Rupali Chandanshive, who converted and was named as Zara, and their two-year-old son Ali resided.