One way to check the authenticity of notice sent by the tax department is to cross check the email ID from where it is sent. Alternatively, you can authenticate the veracity of notice by visiting the tax department website.
Investors can take exposure to gold via ETFs and Sovereign Gold Bonds. Gold should be viewed as a diversification tool in a portfolio, not for high returns. Central banks strong demand for gold has surged prices, with majority purchases from emerging markets.