You can design the questionnaire around following points :
1. Meaning of MRP
2. Awareness about Vegetarian and Non-Vegetarian marks.
4. Awareness about quality marks such as Hallmark, Agmark, etc.
5. Knowledge regarding RTI Act
6. Responsibities of a consumer.
7. Domestic LPG- Weight and seal.
8. Importance of bill/memo.
9. The effect of Advertisements - how people see them.
10. Internet- how it can be usefull to get aware about market.