This is what WES says on their required documents page.
For applicants submitting a Master’s Degree or PGDip (12+3+2) for evaluation. For all applicants submitting a Master’s Degree or PGDip earned on top of a three-year Bachelor’s Degree (12+3+2), you must also provide your Bachelor’s degree documents. WES cannot complete an evaluation without these documents.
Also for Mumbai, Goa and Gujart universities there are some specific instructions.
WES Required Documents
On side note you can check her’s and your degree equivalency with this WES tool for free.
Degree Equivalency Tool