Hi....if u have 2 yrs of exp in testing then u can go for 
CSTE,if u have no exp or less than 2 then u can go for 
ISTQB.And in ISTQB u have to complete foundation level 
first with out foundation level ur not eligible for 
advanced level......and syllabus u can download from the 
corresponding sites and ISTQB is not at all tough....u can 
do it....ALL THE BEST

Hi sneha i have 2.7 yrs of exp in testing. so i think i can 
attend that CSTE is it? but one of my friend is telling 
that i should do ISTQb first so wat to do

U can write CSTE directly there is no rule tht first u have
to complete ISTQB and then only CSTE...both differ from each
other.Since u have 2.7 yrs of exp u can write the
CSTE.....ALL THE BEST

In today's world, where competition is a fact of life and 
the need for a work force knowledgeable in principles and 
practices is a central concern for many companies, ISTQB 
certification is a mark of excellence. The International 
Software Testing Qualification Board (ISTQB) is an 
internationally recognized certification body.

Both ISTQB and CSTE are different certification bodies.
However being a Tester and if you are starting your career 
in Testing with less than 2 yrs experiance then the best 
way to go about is to appear for ISTQB foundation exam.
ISTQB advance level is next stage to ISTQB foundation level.
which has 3 types of sublevels 1) Technical Tester, 2)  
Functional Tester & 3)Test Manager 

I have certified with CSTE and have 5+ yrs of exp. CSTE is 
also very recognized as ISTQB.. but it involves more time 
and effort for the exam.

Difference between the 2:
ISTQB Foundation :The Foundation Level exam consists of 
approximately 40 multiple choice questions of 1 points 
each. An exam amounts to 40 points total, of which 65%(26 
points) must be attained in order to pass. The exam is a 
closed book exam. You have 75 minutes to finish. 
ISTQB Certified Tester is the first truly international 
certification examination. This examination/certification 
comes from International Software Testing Qualifications 
Board (http://www.istqb.org)

For CSTE:
Pls. Visit http://www.softwarecertifications.org/ for up-to-
date information about the Exam
Exam Pattern:

•	Exam has four sections and total exam duration is 
270 min.
•	There are 2 section having objective and 2 sections 
having subjective paper.
•	Objective paper has 50 questions and time limit is 
45 min. You may be asked to match the pairs also.
•	Subjective paper may have 6 to 10 questions and 
time limit is 75 min.
•	10 min, break after each paper. Total duration is 
(45 X 2 + 75 X 2 + 10 X 3 = 270 min)
•	Passing = 75% >.
•	You have to write the exam using HB pencil only.

I hope this helps. Wish you all the best. You may decide 
accordingly.