The correct sequence of events is as follows:
1. New technology introduced (B), which led to the development of various agricultural advancements.
2. This was followed by the displacement of service caste groups (C), as the Green Revolution shifted the social and economic structure in rural areas.
3. Green Revolution (A) was introduced, specifically in the dry and semi-arid regions of India in the second phase, improving agricultural productivity.
4. Finally, increasing commercialization (D) resulted from the enhanced agricultural output and new technology, which commercialized farming practices in these regions.