Determining the "best" consultancy for an Australia visa consultant Karachi largely depends on individual needs and circumstances. However, there are some key factors to consider when choosing a consultancy. Firstly, ensure that the consultancy has registered migration agents with the Office of the Migration Agents Registration Authority (MARA) in Australia, as this is a legal requirement and ensures they are knowledgeable and up-to-date with Australian immigration laws and procedures. Experience and specialization in the specific visa category you are interested in are also crucial. It's beneficial to look for consultants with a strong track record and positive client reviews, indicating their reliability and success rate. Additionally, consider their communication and customer service approach, as personalized and responsive service can significantly impact your experience and the outcome of your application. Lastly, transparent and reasonable fee structures, along with the consultant’s ability to speak your preferred language, can also be important factors in your decision. It's always a good idea to conduct thorough research, compare multiple consultancies, and perhaps even schedule initial consultations to find the one that best suits your needs.