The Manual / Semi / Fully Automatic question depends almost entirely on labour cost vs capital cost in your region.
Manual
Cheapest. Needs 2-4 operators per machine. Good for small batches and rural locations.
Semi-Automatic
Sweet spot for most Indian MSMEs. One skilled operator. Output triples vs manual.
Fully Automatic
PLC controlled, runs unattended. Highest output, lowest per-unit cost. Best when you have steady demand and reliable power.