The Tea Board of India is a statutory body under the Ministry of Commerce and Industry, established under the Tea Act 1953, with its headquarters in Kolkata. It regulates and promotes tea cultivation, manufacture, and export from India's major tea-growing regions: Assam (including Brahmaputra Valley and Barak Valley), Darjeeling, Dooars-Terai, Nilgiris, and Munnar. India is the second largest tea producer globally after China. A Development Officer advises tea estates on agronomic practices, disease and pest management, manufacturing quality, supports small tea growers, and implements Tea Board schemes for replanting and rejuvenation.

Tea Technology section covers: Camellia sinensis varieties (var. sinensis and var. assamica), plucking standards (two leaves and a bud, coarse plucking), withering, rolling, oxidation (fermentation), drying/firing, and grading processes for orthodox, CTC (Crush Tear Curl), and green tea manufacturing; tea tasting and quality parameters (theaflavins, thearubigins, brightness); tea garden diseases (blister blight, grey blight, red rust); tea pests (helopeltis, red spider mite, looper caterpillar) and IPM; replanting and uprooting schemes; soil management in tea gardens; and speciality teas (white tea, oolong, green tea, yellow tea).

Darjeeling tea has a Geographical Indication (GI) tag and is globally known as the "Champagne of Teas" for its unique muscatel flavour derived from the high altitude (600–2,000 m), cool climate, misty conditions, and the unique interaction of the Jassids insect which triggers the muscatel compound. There are four distinct Darjeeling flushes: First Flush (March–May), Second Flush (May–June), Monsoon (July–September), and Autumn Flush. Darjeeling tea is certified by the Tea Board's Darjeeling logo certification mark. Understanding the flush system and GI protection is important for Tea Board exam preparation.

Small Tea Growers (STGs) now account for over 45% of total tea production in India, predominantly in Assam and West Bengal. Tea Board implements specific schemes for STGs including subsidised replanting, bought leaf factory licence facilitation, quality certification support, training in good agricultural practices, and direct market linkage through e-auction platforms. Development Officers in Assam and Dooars regions spend significant time working with STG clusters. The Tea Board's Pradhan Mantri Kisan Urja Suraksha evam Utthan Mahabhiyan (PM-KUSUM) scheme for solar energy in tea gardens is also a recent important initiative.

Tea Board Development Officers are Central Government employees with pay scales equivalent to Group B officers, with an effective CTC of approximately Rs. 6–8 LPA including allowances. Postings are primarily in Assam (Guwahati, Jorhat, Dibrugarh, Silchar), West Bengal (Darjeeling, Siliguri, Jalpaiguri), and Nilgiris (Tamil Nadu). Kolkata headquarters postings are for some senior positions. The role involves frequent estate visits in remote hilly and forested terrain, and Tea Board provides transport support. The role offers immense exposure to India's plantation agriculture heritage.