The factor that is primarily impeding economic growth in India among the options provided is poor infrastructure. While India has made significant strides in economic development, inadequate infrastructure—such as transportation, power supply, and sanitation—continues to be a bottleneck that hinders overall economic progress.
The other options—command economy, microlending, and outsourcing—do not accurately reflect the current economic challenges in India as a command economy is not an accurate description of India's mixed economy, microlending typically supports growth rather than impedes it, and outsourcing has been a significant driver of economic growth in certain sectors.