In your instrument master, tick_size column is incorrect for MCX segment.
All segments show tick size in rupees (so if tick_size for SBIN is 5 paisa then your file has value 0.05 (means 0.05 rupees))
However, it is not the case with MCX (natural gas options for example has a tick size of 5 paisa, but your file shows it as 5 which is not uniform with other segments (it should be 0.05). See screenshot below: