What are the difference between up psc lower subordinate and upper subordinate exam?

Psc Lower subordinate and Upper subordinate
The main difference in Up psc Lower subordinate and Upper subordinate:
1) The difference in Posts and pay scale:
A)- Lower subordinate:
Posts-Passenger Tax /Goods Tax Superintendent GTS, Statistical Assistant Industries Department, Labor Enforcement Officer LEO, senior Sugarcane Inspector SSI, Excise Inspector SI, Legal Assistant LI Transport, Legal Assistant Housing & Urban Planning, Executive Officer U.P. Palika Centralized Service, Assistant Consolidation Officer ACO / Assistant Rectangulation Officer ARO, Entertainment, and Betting Tax Inspector EBTI, Supply Inspector SI, Marketing Inspector MI, Additional District Savings Officer ADSO.
Computer/Junior Statistical Inspector SJSI /Field Investigator FI Agricultural Statistics and Crop Insurance, Investigator Cum Computer Co-operative Societies, Sugarcane Development Inspector SDI, Executive Officer EO Nagar Vikas, Cooperative Inspector CO, ADO, Auditor Labor Department, Khandsari Inspector, Executive Officer grade 3 U.P. Palika Centralized Services, Auditor Women and Child Development Department, Auditor NCC Directorate, Assistant Prabhari Horticulture & Food Processing, Auditor Food & Civil Supplies, Auditor Co-operative Societies, etc.
Pay scale-5500-20200
B)-Upper Subordinate(Popularly known as PCS):
Posts- Deputy Collector, Deputy Superintendent of Police, Block Development Officer, Assistant Regional Transport Officer, Assistant Commissioner (Commercial Tax), District Commandant Homeguards, Treasury Officer/Accounts Officer (Treasury), Cane Inspector and Assistant Sugar Commissioner, Superintendent Jail, Manager Credit (Small Industries), Manager Marketing and Economic Survey (Small Industries), Executive Officer Grade-I/Assistant Nagar Ayukta, District Basic Education Officer/Associate DIOS & Other equivalent Administrative Posts.
Assistant Director of Industries (Marketing). Assistant Labour Commissioner, Senior Lecturer DIET, Designated Officer, Assistant Commissioner Industries, Statistical Officer, Assistant Accounts Officer, (Treasury) Commercial Tax Officer, District Minority Welfare Officer, District Food Marketing Officer, Executive Officer (Panchayati Raj), Deputy Secretary (Housing and Urban Planning), Area Rationing Officer, District Backward Welfare Officer, Naib Tehsildar, District Saving Officer, District Panchayat Raj Officer, District Social Welfare Officer, Executive Officer (Nagar Vikas), Accounts Officer (Nagar Vikas), District Supply Officer Grade-2, Additional District Development Officer (Social Welfare), Passenger/Goods Tax Officer.
District Handicapped Welfare Officer, Assistant Employment Officer, Accounts Officer (Local Bodies), Regional Employment Officer, Assistant Registrar (Cooperative), Sub Registrar, Assistant Prosecuting Officer (Transport), District Probation Officer, District Horticulture Officer Grade-2, District Horticulture Officer Grade-1, and Superintendent Govt. Garden, District Horticulture Officer, District Cane Officer, U.P. Agriculture Service Group-” B” (Development Branch), District Administrative Officer, District Audit Officer (Revenue Audit), Assistant Controller Legal Measurement (Grade-1), District Programme Officer, District Youth Welfare and Pradeshik Vikas Dal Officer.
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Payscale- 9300-34800
2) The difference in exam pattern:
a) Lower subordinate :
It consists of 1)Prelims (Only one paper)
2)Mains(consist of two papers)
3)Interview
b) Upper subordinate:
It consists of 1)Prelims (Two Papers)
2)Mains (Eights papers)
3)Interview