Lenovo  has been quite aggressive about expanding its portfolio of smartphones  in the Indian market since its acquisition of Motorola. It has released a  number of handsets in budget and mid-range segment in the last one  year, which proved to be successful with Indian consumers. The Lenovo K3  Note, unveiled last year was a stupendous success with budget users.  The device woos users with its combination of powerful hardware at an  entry level price. With the Vibe K4 Note, Lenovo wants to up the ante.