GMAT

Hi Harman,
The download is not available for this book. Please buy. Check
http://www.mba.com/india/store/store-catalog/gmat-preparation/the-official-guide-for-gmat-review-2017.aspx
You can download the GMAT preparation software instead:
http://www.mba.com/india/the-gmat-exam/prepare-for-the-gmat-exam/test-prep-materials/free-gmat-prep-software

Hi Anuj,
Yes, it will be considered as work experience. You must prove or demonstrate your contribution to the business, its growth and your role in it. The nature of your involvement will be evaluated.

Hi,
The following answers should help.
https://ask.shiksha.com/which-is-the-best-book-for-preparation-for-gmat-qna-2322348
https://ask.shiksha.com/which-are-the-best-books-to-prepare-for-gmat-qna-3738652

English speaking skills is important for admission as some universities also prefer admission on the basis of work experience.

No, entrance exams are a must to secure admission in any of the college.

GMAT scores are not considered for the master of management program in SJMSOM.

Hi,
Couple of EMBA programs can waive it off depending on the candidate's qualifications and work experience. Applicants with more than 10 years' work experience can have a waiver. Check ISB PGPMAX, Duke Fuqua EMBA, Cornell EMBA, NYU EMBA, NUS UCLA Asian EMBA. Many blended and online EMBA programs can also be considered.

No, you cannot you have to appear for CAT.

MBA Telecom and MBA are sector specific MBA. Why do you want to restrict your chive of employer to these two markets"? Both these sectors have started showing early sign of decline phase. You are advised to do generic MBA and then make a choice of industry to work after understanding all management functions.