RAIPUR/BILASPUR/DURG (CHHATTISGARH): As Shahnawaz Khan waited for his wife’s turn in the snaking queue for tests at the All India Institute of Medical Sciences Raipur, his thoughts turned to another queue —one they will join on Tuesday to vote in the general elections. And, like Khan, the thoughts of many voters are focused on two priorities —health and education—in one of …