Examples of sources which I accessed and who were helpful to me are given below:
- Letters of reference from the famous Dr. Karan Singh, MP and son the previous ruler of Jammu and Kashmir and putative heir
- Punjab State Archives in Chandigarh
- Signatures of Professors J S Grewal and Indu Banga on a copy of a page of Char-Bagh. They are eminent historians of Punjab and gave me references of the libraries and people to meet in Punjab.