SP 24-1978 is a design aid for the Indian standard code of practice for plain and reinforced concrete, say IS 456-2000. This code is divided into 6 sections and 5 appendices, covering both, limit state design and working stress method as well.
You can download SP 24 : 1978 in pdf form here
SP 24-1978 provides a detailed explanation and could be used as a handbook for IS 456-2000.
You can download relevant IS Codes from the following list.
- IS 13920 2016, code of practice for ductile detailing of earthquake resistant structures
- IS 4326 2013 Earthquake Resistant design of structures
- SP 16 [PDF] Download
- Download NBC 2016 – Volume 1 & Volume 2 [PDF]
- IS 10262-2019 [PDF] Guidelines to Concrete Mix Design