The Makum Tea Co. (India) Limited was incorporated on December 17, 1971 in the State of Assam and it received the certificate of Commencement of Business on August 18, 1972 from the Registrar of Companies, Assam. The Company was acquired as a going concern undertaking in India of The Makum (Assam) Tea Company Limited, UK. The main activity was growing, cultivation and manufacturer of tea.

In accordance with a Scheme of Arrangement approved by the shareholder of Makum Tea Co. (India) Ltd. and McLeod Russel (India) Limited. and confirmed by the Hon'ble High Courts at Gauhati and Calcutta the three tea estates of the Company viz. Dehing, Dirok and Margherita Tea Estates were transferred to McLeod Russel (India) Limited with effect from April 1, 1994.

Similarly Namdang Tea Co. (India) Limited under a Scheme of Arrangement approved by the shareholders of Namdang Tea Co. (India) Ltd., and McLeod Russel (India) Limited and confirmed by the High Courts at Gauhati and Calcutta the two tea estates of the Company viz. Namdang and Bogapani Tea Estates were transferred to McLeod Russel (India) Limited with effect from April 1, 1994.

Subsequently Namdang Tea Co. (India) Limited was amalgamated with Makum Tea Co. (India) Limited in accordance with a Scheme of Amalgamation approved by the Hon'ble High Court at Gauhati with effect from April 1, 1994.

Consequent to the amalgamation and transfer of tea estates the activities of the Company were not germane to its name. Hence, the name of Makum Tea Co. (India) Limited was changed to Williamson Financial Services Limited with effect from December 20, 1994. The Company is an Investments Company - an NBFC registered with the Reserve Bank of India under the Reserve Bank of India Act, 1934.