Whenever your job involves dealing with the public there is a risk of questions about your personal life. If you are not in a position where trust is inherent (doctor, civic official, etc) it is likely that they will try to build trust and rapport by learning about you.
If the common questions about you will fail to build rapport due to different values or factors outside of your control (race, caste, religion, etc) there are two big things you can do. Prevent the question and deflect the question.
To prevent the questions, presenting a powerful image helps. If you meet the prime minister or head of a prestigious hospital you are unlikely to start probing them with personal questions as they are respectable but not relatable. The catch for you is I don't know if this will run directly contrary to your development work, if you need to be relatable to these people to do your job. To present a powerful image, dress well, be well groomed, stand tall, speak clearly and confidently.
Once the question is asked you have to be ready to divert it. If the question is asked in a hinting way rather than directly, answer a similar point that wouldn't harm rapport with these people. eg If they ask about your wedding talk about all the wonderful weddings your family has had and any quirky wedding traditions in the family. One key point to this is make the answer long so that they forget that you didn't actually answer their question. With some practice you can come up with a story that will come back around to the reason why you are in the village. This can take some practice but if you ever watch political debates you will see great examples of answers seeming like they answer the question but quickly divert to a different point entirely.