Tea production in 2012-13 was 1,135.07 million kg, according to Tea Board of India data.
The combined output of Assam and West Bengal rose 6.52 per cent to 980.01 million kg in the previous financial year from 920.01 million kg a year earlier.
Assam and West Bengal are the major tea-producing states, accounting for 80 per cent of India's total output.
Tea production in the southern states of Tamil Nadu, Kerala and Karnataka was up 13 per cent at 244.47 million kg.