Below is the information from website. There is no mention of transcript as required document
http://www.wes.org/required/index.asp
India
How WES evaluates selected three-year bachelor's degrees from India.
Frequently Asked Questions
Step 1: Before Sending Documents
Complete the WES Application and get a Reference Number.
A reference number is required on all documents, forms and correspondence sent to WES.
Step 2: Documents to Send
Higher Education
All documents listed below are required.
Required Documents How to Send Documents
Clear, legible photocopies of all final or provisional degree certificates issued by the institutions attended
e.g. Bachelor, Master, Master of Philosophy, Postgraduate Diploma
AND
To be submitted to WES by applicant.
All individual mark sheets indicating all subjects taken and marks obtained for all years of post-secondary study – issued by the institution responsible for conducting the examinations.
e.g. university or autonomous college
NOTES:
College-issued and attested mark sheets will NOT be accepted unless from an autonomous college. To check whether your college has autonomous status click here.
Univ. of Mumbai and Gujarat Univ. – Please see FAQs for specific instructions.
Request for all mark sheets to be sent directly to WES by the institution responsible for conducting the examinations
-OR-
You may have photocopies of your original mark sheets attested and dated by the Controller of Examinations or Registrar's Office. Please request for the attested photocopies to be placed in an official sealed envelope and have the envelope returned to you to forward to WES.
NOTE: Mark sheets attested by persons outside the Controller of Examination or Registrar's Offices, such as individual professors or external notary publics, will NOT be accepted.
Download the academic records request form.