Lambretta was a line of motor scooters originally manufactured in Milan, Italy by Innocenti. In India, API (Automobile Products of India) manufactured Lambretta scooters under licence. API was founded in 1949 but has not been operational since 2002.
More information on these Vintage beauties can be found on Lambretta's official website. Above photo shot during Vintage Automobile Show in Whitefield, Bangalore