Codelgniter application customization

I want customization in this code, can you tell me the estimate for this customization Please let me know the cost & time. HR System 1. Required field on Basic Information tab a. Middle Name b. Employee card no. c. Permanent Address d. Local Address e. Pan card no. f ESIC no. g. PF no. 2. Remove sub- department field on Basic Information tab 3. Employee details- Nominee details tab required a. Name b. Relation c. Birthdate d. Age e. Sex f. Permanent Address g. Local Address 4. Change sequence Name first & then Relation on Emergency contact tab 5. Add Mediclaim yes/no radio button if yes mediclaim details tab 6. Add mediclaim yes/No column in import employee sample sheet also. 7. Remove sub-department tab & fields where is present 8. No use of Username & Password for company. 9. Remove check in or Checkout replace with Present & Absent [login to view URL] employee attendance sheet view & print using calendar [login to view URL] & Print Attendance report, All employee report. [login to view URL] Sheet view & Print using calender. [login to view URL] the tabs in the system for display hide & show. 14. Salary statuatary deductions screen a. PF deductions[calculated with Indian formula]- 12% b. ESIC deductions- CHECK THE FORMULA-[calculated with Indian formula] c. Professional Tax-[calculated with Indian formula] d. Income tax-[calculated with Indian formula]