Reading the Kalyan Panel Record
You may also see this called the kalyan penal chart or patti chart. Each box, from 31 Dec 2012 onward, stacks the open panna on the left and the close panna on the right, with the jodi between them.
This is the market most players plan their evening around. The Kalyan open lands at 4:35 PM and the close at 6:35 PM, Monday to Saturday, with nothing on Sunday. Kalyan Night shares the name but has entirely separate numbers.