Dibrugarh

Drive through tea gardens dotted with shade trees where in season, the work force (typically women in Assam) dressed in saris patrol the rows of bushes plucking the tea. Tourists can watch as they deftly use the fingers and thumbs of each hand to nip off the 2 leaves and 1 bud at the tip of each stem, tossing it over their shoulders into baskets they carry on their backs. Visit the factory itself where the machinery and different processes involved in producing the finished leaf are undertaking. Tourists then have the opportunity to visit the tasting room where they learn about (and sample for themselves) the range of flavours of the different grades of tea produced. 

It is an oil town that can be traced to the early 18th century, when oil was first discovered here. The Digboi Refinery in North Eastern India is India's oldest refinery and was commissioned in 1901. Originally a part of Assam Oil Company, it became part of IndianOil in 1981. Digboi can proudly boast of two unique features: a 100 year old extant oilfield and the world's oldest operating oil refinery. The Digboi Refinery was set up at Digboi in 1901 by Assam Oil Company Ltd.