Yesterday I have taken Zerodha API subscription which includes subscription for Historic Data as well. The historic data has got lots of issue and really is not worthy of backtesting. As its been only one day please let me know if it is possible to get total refund of the money that I paid ?
Sharing one example below.
Adani Ent and Tech Mahindra historic data has trading data for Public Holidays, Saturday and Sunday. 2011-10-26T00:00:00+0530 Seems to be a public holiday 2012-01-07T00:00:00+0530 SATURDAY 2012-03-03T00:00:00+0530 SATURDAY 2012-04-28T00:00:00+0530 SATURDAY 2012-09-08T00:00:00+0530 SATURDAY 2013-05-11T00:00:00+0530 SATURDAY 2013-11-03T00:00:00+0530 SUNDAY 2014-03-22T00:00:00+0530 SATURDAY 2015-02-28T00:00:00+0530 SATURDAY
One can accept slight mismatch in OHLC price amount or volume data. But historic data having data for days when exchange is shut down is quiet surprising. One can only imagine accuracy of data in other Symbols.