As you are looking for Delhi Police notification for Standing Orders/Circulars, so for it you need to follow given below process :

Go to the DELHI POLICE Shanti Sewa Nyaya official website

Click on standing order link on home page

By click there you will land on standing order page which look like this image



As on 12.2.2018 following notification avail there

Annual health checkup-CGHS.
Welfare-Serious illness of staff.
MINUTES OF THE MEETING HELD BY SPECIAL COMMISSIONER OF POLICE/WELFARE & ESTATE OVERSIGHT WITH THE ESTATE-CUM-WELFARE OFFICERS OF DELHI POLICE ON 06.11.2017 AT 1600 HOURS AT CONFERENCE HALL, PHQ
Minutes of the meeting held by special commissioner of police/welfare & Estate oversight with the estate-cum-welfare officers of Delhi Police on 19-09-2017 at 1430 Hours at conference hall, PHQ.
Welfare-Delays in sanction of pension.
Minutes of the meeting held by special commissioner of police/welfare & Estate oversight with the estate-cum-welfare officers of Delhi Police on 19-07-2017 at 1600 Hours at conference hall, PHQ.
Welfare-Periodical review by DCsP.
Regarding Meeting held on 06.07.2017 to discuss preparedness and action taken for Dengue and Chickungunya at Raj Niwas under the Chairmanship of Hon'ble LG,Delhi."
Welfare-grievances redressal- MACP delays.
Welfare- Meeting of staff by sub. divisional/functional ACsP-Need for proper follow up.
Welfare- SMS Alert system - Implementation.
Welfare- E-learning -PrepManta English Speaking.
Welfare- Pension Cases.
Welfare- Review.
Maintenance of Parks in Police colonies.
Welfare-Meeting of individual personnel by sub Divisional/Functional ACsP and Sampark Sabhas.
Welfare Cases of accidental death-Axis Bank insurance.
Health Check up camps
Minutes of the Monthly Meeting held by the Spl. Commissioner of Police, welfare & Estate Oversight with Estate-Cum-Welfare Officers of Delhi Police at 04.00 PM on 08.03.2017 in PHQ Conference Hall.
Welfare - Pension Case.
Welfare - Annual D.O. letter to DCsP.
Welfare- Grievances redressal.
Welfare- Implementation of SMS Alert System.
Meeting of Police Personnel by Sub divisional /Functional ACsP.
Welfare- Growth beyond the Job.
Welfare- Impact of Welfare Schemes on Police Personnel - Research Study/Recommendations submitted to BPR&D by Shri Pramod Shripad Phalanikar, IPS.
Welfare- Financial literacy.
Welfare- Meeting of personnel by ACsP.
Welfare- Mosquito menace - Dengue/Chikungunya.
Condolence(D.O) letters to bereaved family.
Grant of loan for marriages (Addendum in S.O.-19 DELHI POLICE WELFARE SOCIETY).
Regarding differently abled police personnel in Delhi Police.
Welfare-Subletting of police quarters.
Welfare-Role of Sub-divisional/functional ACsp.
E-learning-Online coaching for the wards of police personnel.
Nutrition-Lecture note-Circulated.
Meditation-cum-yoga room.
Access to the children of Delhi Police personnel on website NDA Entrance,Bank PO Written Exam,Railway Recruitment Exam,Civil Services Aptitude Test for the purpose of study and practice with unlimited customised tests aimed to career-making examinations.
Regular holding of Sampark Sabhas.
Welfare-meeting of personnel by sub-divisional/functional ACsp.
Privilege banking services of Axis Bank to Delhi Police personnel.
Analysis and action on various grievances of personnel projected in Sampark Sabhas during the previous three years.
Welfare - Health Camps
Welfare - Hudco Housing Loan for Delhi Police Personnel under "Pradhan Mantri Awas Yojna"
Welfare - Mosquito Menace
Welfare - Summer Heat
Standing Order No. 421-Delhi police Mrtyrs' Fund
Standing Order-3/2010 "For the allotment Residential Accommodation on the changes of Delhi Police AMMENDMENT on dated 23/11/2010. Corrigendum 14/02/2014" .
Standing Order A-48 "Previous Standing Order No. 234/2010 Delhi Police Amenities Fund" .
Circular No. 04/2015 "Pradhan Mantri Jan Dhan Yojna (PMJDY)" .
Circular "Guidelines regarding procedure of GPF withdrawal at H.O.D. le vel which are to be sent to PHQ" .
Circular "Nirbhay Fund - Social Worker" .
Amendment in S.O. No. 03/2015
Welfare
Welfare-meeting of personnel by sub divisional / functional ACsP