I checked the historic data of 10:00 a.m. candle ( 5 minute interval) at about 10:10 a.m. and 01:50 p.m. today. Interestingly there has been a strong difference. at 10:10 a.m. the closing shows as 19669.7 and volume as 31000. At 01:50 a.m. the closing shows as 19678.2 and the volume as 59150. Can I know why this is happening? Please look at the volume data and also the "Close" data here.