Cost of Will + Power of Attorney for Medical/Financial Matters.

1. What is the cost of making a Will in Mumbai these days? 2. Also in Mumbai what is the cost of making a Power of Attorney in Mumbai these days for Financial & Medical matters combined? 3. Also does the WILL & POA have to be registered in a Government office or Court? Or can the lawyer just make the Will & POA. and notarize it and get witnesses to sign it?