Experienced Ghostwriter, Editor,and Publisher based in the United States. Charges a Minimum of $10 USD per page for Ghostwriting work. 30000 words =approximately 120 pages. Hopefully the monetary system that you chose was a mistake as $46 USD/2500 INR is not nearly enough to tempt a serious Ghostwriter to take on your project unless that author happens to make a mistake on the currency exchange rate?
Also 20000-30000 words length is a Novella length. Minimum novel length is approximately 50,000 words in US/European Market. Most mass market/bestsellers are at least 80,000 word. If you wish me to reevaluate a bid for a longer project, please message me.