The Tata Group unveiled a Tata Nano is covered by 80 kg of 22-karat gold, 15 kg of silver as well as 10,000 semi-precious stones and gems (including rubies and diamonds).This Tata Nano is not for sale and it is made for branding initiatives of Tata Goldplus Jewellery. This special Nano was unveiled by Mr Ratan Tata in Mumbai to celebrate the 5,000 years of jewellery making industry in India…