I am new to this forum so kindly excuse me if I may ask any stupid questions.

I am currently a UK citizen working and living in the UK. I am planning to apply for my Brother's Tier-1 who is currently based in India. I am a bit lost as to which visa consultancy should I approach/select who are reliable and do all the paperwork on my/bother's behalf?
Also, is it better to select a consultancy from India as it may turn out a bit economical and also because the application is to be made from India?
Many thanks to everyone.
Indidude