RRB Chennai in ASM

What is the correct date of RRB Chennai in ASM examination

Here I am providing the post names provided by RRB:
RRB announced the following posts:
Commercial Apprentice (CA)
Traffic Apprentice (TA)
Enquiry cum Reservation Clerk (ECRC)
Goods Guard, Junior Accounts Assistant cum Typist
Senior Clerk cum Typist
Assistant Station Master and Traffic Assistant

Below I am providing the procedures of selection for these posts.
Procedure:

Preliminary Examination
Main Examination
Skill Test (Typing Test)
Aptitude Test
Document Verification
Medical Fitness Test
The procedure of selection is set up according to deferent posts.

Through the following words I am providing you the detail of RRB Chennai in Assistant Station Master
Details of RRB Chennai in Assistant Station Master:

Last exam of RRB in ASM held on 02 December 2012.
Name of the post : Assistant Station Master
No. of vacancies : 2646
Normal Age on 01.07.12 : 18 years-33 years
Educational Qualification: Degree from authorized and recognized University. Diploma in Rail Transport & Management, Transport Economics, Multimodal Transport (Containerization ) awarded by Institute of Rail Transport, Rail Bhawan, New Delhi will be additional desirable qualification.

Selection procedure for Assistant Station Master will be like this:

Preliminary Examination is common for all the posts included Assistant Station Master.
Main Exam in second stage, Aptitude Test and test of your correct document will be conducted for the post of Assistant Station Master.
Medical fitness certificate will be required at the time of Appointment.

New exam date of 2013 is still not fixed. This will be provided after updating.

sir i does not submitting the document copies now(at the second stage exam)
than my position is what at the examination hall?

When sir rrb take asm exam.
in which month vaccany and when exam date.
In 2014 when asm exam start