Department of Delhi Archives 
Private archives constitute very essential part of archives. It throws light on the personalities' private and social life. Delhi Archives is having a huge collection of private papers. Some of the important personalities and organisations are :
- Dr. Sayed Ahmed Ali
- Lala Sagun Chand Jain
- Maulana Kifayattullah Mufti
- Sri Ram, Bar-at-law
- Lala Nannumal Jain
- K.P. Shankara
- Gauri Shanka Mandir
- Ram S/o Chaudhri Hakam Singh
- Bagichi Madho Dass
- L. Memobai
- Sisganj Gurudwara
- Dargah oh Hare Bhare Sahib, Jama Masjid
- Maulana Habib-ur-Rehman
- Hariranjan Mazumdar
- D.R. Handa
- Maulana Abdul Gani Dhar
- Maharaj Jugta Nand
- Swami Ram Room Ji
- Asaf Ali
- Mahant Ganga Dass
- Mahant Ramji Dass
- Lachhman Singh, Yudhvir Singh
- Hindu Rao Hospital
- J. G. Jaura
- Dr. Bhagwan Dass
- Lala Jhabban Lal
- S. M. Ghosh
- Gulab Chand Jain
- Hanuwant Sahai
- S. M. Ghosh
- M. C. Daver
- Keshav Singh Garg
- Mirza Ahmed Ali
- A. B. Bhardwaj
- R. N. Sen
- S. N. Banerjee
- Man Math Nath Gupta
- Sultan Yar Khan
- N. D. Mathur
- Prithvi Raj Azad
- Mir Mushtaq Ahmed
- Dev Dutt Atal
- Shankar Lal Bindu
- Manotosh Bhattacharya
- Azmal Farooqi
- Krishan Mohan Lal
- Vijay Kumar Jain
- Abdul Fateh Bag Natri Allah
- Servants of the People Society
- R. B. Rai Bahadur
- Letters of Subhash Chandra Bose
- Nanak Chand Sharma
- Lala Hardhyan Singh
- Hakim Nasiruddin Ahmed
- Puran Lal Agarwal
- K. M. Lal
- Indra Prakash, Hindu Mahasabha
- Ravi Sharma
- Sheel Bhadra Yajee
- Chand Rani Saxena
- Sarvdeshik Arya Sabha
- Radha Mohan Jain
- Rai Bahadur Minamal Somani
- Prahlad Dutt
- R. C. Sharma
- Hanumant Sahai
- Parmanand
- Asha Lata Sen
- Dr. M. M. Samar
- Dayal
- Indraprashtha School
- Ganpat Lal Gupta
- Sat Narain Seth
- Debotosh Das Gupta
- H.I.S. Kanwar
- Kaviraj Krishan Gopal
- Dr. A. Ahmed
- N. C. Sharma
- Shyam Layalpuri
- Krishna Dulari
- G. S. Kohli
- Ram Dhandra Dadich
- Venkat Rao Raisain
- Keshav Singh Garg
- N. N. Kaul
- Milki Ram Vasudeva
- V. B. Singh
- Khan Bahdur@Chandra Suman
- Pindi Das
- Vishnu Prabhakar
- Yash Pal Jain
- Narain Dass
- Sayed Kudrat Ali
- Barin Ghosh
- Ishwar Dutt Diwan
- S. B. Dass
- Mandir Hatkeshwar Nath
- Sardar Bahadur
- Com. Ram Chandra
- Geeta Biswas
- Jagdish
- P. S. Returi
- Des Raj Bharti
- Savitri Devi
- Panna Lal Seth
- P. N. Tiwari
- Uttam Chand
- Taqi Haidar
- Hari Singh
- Hindi Pracharini Sabha
- Shiv Charan Gupta
- Pir Zamin Nizam
- Dr. Pritam Singh
- G. S. Dhillon
- Prem Bhasin