Complex sentence: In 1997, PAJANCOA was upgraded as research institute and since then, it has been called as Pandit Jawaharlal Nehru College of Agriculture and Research Institute (PAJANCOA & RI).
Split into simpler sentences: In 1997, PAJANCOA was upgraded as research institute. Since then, it has been called Pandit Jawaharlal Nehru College of Agriculture and Research Institute (PAJANCOA & RI).