During the period of 2014-2015, out of the given options, the industrial sector that experienced the highest Foreign Direct Investment (FDI) equity inflow was the services sector. This sector includes various services such as financial services, banking, insurance, non-financial services, and business research and development.
Option 1: Telecommunications - This sector deals with telecommunications services and infrastructure. Although it may have received some FDI equity inflow, it was not the sector with the highest inflow during 2014-2015.
Option 3: Drugs and Pharmaceuticals - This sector pertains to the manufacturing and distribution of drugs and pharmaceutical products. While it might have received substantial FDI equity inflow, it was not the sector with the highest inflow during the specified period.
Option 4: Hotel and Tourism - This sector involves the hospitality industry and tourism-related activities. While it may have attracted FDI equity inflow, it was not the sector with the maximum inflow during 2014-2015.
Therefore, the correct answer is option 2: Services. This sector, encompassing a range of financial and non-financial services, experienced the highest FDI equity inflow during the mentioned time frame.