As of my last knowledge update in September 2021, there isn't a single "best" job consultancy in Bangalore for jobs abroad, as the effectiveness of a consultancy can vary depending on individual circumstances and industries. However, some reputable consultancies in Bangalore include Y-Axis, Vira International, and Sulekha Jobs. It's essential to research and choose a consultancy that specializes in your desired field and has a good track record of assisting individuals in finding jobs abroad. Always verify their credentials and success stories before engaging their services.