Hello,
I'm interested in your project. I've been working in Translations for the last 4 years so I have a lot of experience in this subject. I'm a native Spanish speaker and I'm fluent in English.
I've done translations of Ebooks, articles, blogs, websites, books, reports, legal documents, business documents, contracts and many others.
For Proofreading I usually charge US$0.005 per word. I could charge you US$2 per document. INR 140 per document.
Regards,