Articleship under direct entry scheme

Dear Sir,

I want to join article ship under Direct Entry Scheme. I need help in the following cases.

1. Should i register for articleship before joining any CA firm. If so, what is the procedure for registration ?

2. What is the procedure for joining articleship. How to approach the firms i mean will i have to carry my resume and will they conduct interview??

3. Please tell about any middle level CA firms around Ameerpet, Hyderabad.

I have absolutely no clue about the above questions. Please help ASAP since i have to join the articleship from August at any cost ( I am planning to give my IPCC group 1 in MAY 2015)

Thank You

Please