How to deal with 17month old tantrum!? Be it anything .. How do we stop her doing something dangerous or dirty?

Most times you may be able to predict what is going to happen dependig on the environment. Toddlers are meant to go around exploring so if a toddler is near water or sand or soil, you can almost guarentee that he will get into the mess. Similarly if there is anything potentially dangerous lying around or within his reach. So trying to be proactive on avoiding the situation rather than reacting after the fact will often reduce instances where you have to remove things from him or scold him.