Step 1: Understanding the Concept:
This question requires a chronological understanding of the establishment of key economic institutions and historical milestones in India.
Step 2: Detailed Explanation:
Let's look at the timeline for each option:
1. TISCO (Tata Iron and Steel Company): Founded by Jamsetji Tata and established by Dorabji Tata on August 26, 1907. It is one of the oldest private sector steel plants in India.
2. NABARD (National Bank for Agriculture and Rural Development): Established on July 12, 1982, to promote sustainable and equitable agriculture and rural development.
3. WTO (World Trade Organization): Began operations on January 1, 1995, following the Marrakesh Agreement, replacing the GATT.
4. GST (Goods and Services Tax): Implemented in India on July 1, 2017, as a major indirect tax reform.
Step 3: Final Answer:
Based on the years (1907, 1982, 1995, 2017), TISCO was established the earliest.