The Tata group is planning to take over pesticide-maker Rallis India, oldest companies in India, with its agro-chemicals Tata Chemicals.

The merger process is on the way but the companies would take some time to take any decision since both the companies are listed on Indian markets.

Both companies have same line of businesses, providing synergies in terms of complementary products.

The merger eyes a 15% to 20% reduction in Rallis' raw material, employee, logistics and other operational expenses, the sources added.