Tanishq, branded jewellery major, has kicked off a one-week exchange period, during which any jewellery purchased can be exchanged at its full value. Y L Saroja, group manager- sales & marketing, Tanishq, said, "Valentine's Day in recent years has become highly popular amongst the people, with couples expressing their love for each other through gifts and celebrations. Tanishq promises to revolutionise men's gifting by offering them a change to really retain the surprise element, unlike before."