Tata Sons Pvt Ltd has acquired a 0.71% stake in Tata Chemicals on Wednesday. The 0.71% stake accounts to 1.8 million shares with a total amount of Rs 76 crore. The company bid shares at Rs 420.92 apiece. Tata Sons holds a 29.39% stake in Tata Chemicals. Shares of Tata Chemicals on Wednesday gained 5.53% with a close of Rs 427.35.