Apart from starch and alcohol level measurement which other analysis can be done to determine the level or progress of fermentation process?

The most easiest and simple way to determine the progress of your fermentation are

1. smell the odour of fermentation

2. Spectrumentrical check the turbidity of broth as fermentation increases turbidity increasess

3. by MPN, Neubers counting chamber

Lactate 

Lactate Dehydrogenase LDH