SBI LOT size from 2015

Hi all, I’m manually backtesting SBI ration spread strategy in Excel, would like to know where can I get LOT info from 2015

This information can be found via NSE circulars (specifically by looking in “Futures & Options” category). I compiled this in the table below.

State Bank of India option contracts started trading on July 02, 2001 and futures contracts started trading on November 09, 2001. The lot size changed as follows -

From Date To Date Lot size Reference Circular
July 02, 2001 / November 09, 2001 March 14, 2004 1000 NSE/F&O/027/2001
March 15, 2004 February 22, 2007 500 NSE/F&O/010/2004
February 23, 2007 December 27, 2007 250 NSE/F&O/010/2007
December 28, 2007 January 27, 2008 125 NSE/F&O/108/2007
January 28, 2008 December 24, 2008 132 NSE/F&O/012/2008
December 26, 2008 June 25, 2009 264 NSE/F&O/128/2008
June 26, 2009 April 29, 2010 132 NSE/F&O/042/2009
April 30, 2010 November 19, 2014 125 NSE/F&O/029/2010
November 20, 2014 May 03, 2015 1250 NSE/F&O/080/2014
May 04, 2015 August 27, 2015 1000 NSE/F&O/025/2015
August 28, 2015 April 28, 2016 2000 NSE/F&O/075/2015
April 29, 2016 April 29, 2021 3000 NSE/F&O/033/2016
April 30, 2021 Present day (aka May 24, 2021) 1500 NSE/F&O/029/2021