My chances of doing Articleship in lahore

[noman]

ok people..
i know some of you will say read previous threads and so on..

but i didn't get answer to what i am asking..
first i will say abt my background....

Matric (ssc)-------65% marks
FSC (hsc)-------44% marks
CA Inter ----------6 attempts

now..the questions..

1-what are my chances at big four without reference??
2-how should i prepare myself for their tests interviews etc
3-which firms should i apply for in addition to big four in lahore
4-what level of sifaarish is requried? i wanted to know the sources of sifaarish...does it mean a big industrial client/some CA person/some relative of partner/or what?????
5- is neck tie essential for obtaining trainee placement?
please reply as soon as possible..

thanks in advance