Taxability for NRI_Interest income

I am a non resident Indian & resident of Spain . I have income chargeable to tax in Spain.
Further, I have a bank account in India & I transfer amount from my Spain bank account to my India's bank account once in 2-3 months. Interest earned on that amount is consumed by my family in India.

Is that interest income earned by me is chargeable to tax ?? Whether any liability can be imposed on my family, who are beneficiary of that interest ??