As you want to get the details of pay scale of post of Junior Civil Engineer in Indian Railways so here is the information of the same for you:

Salary and other perks
(i) Pay Scale 9300-34800
(ii) Grade Pay 4200
(iii) Initial Pay 9300
(iv) Total Pay (i) + (ii ) Rs.13500

Selection Process:
Written Examination and Document Verification.

Qualification:
Diploma in Civil Engineering from a recognized university/institution.

Other Allowances depend on various conditions and hence can’t be stated uniformly. Other major allowances include :

DA on Total Pay above
Transport Allowance
House Rent Allowance(if not provided with quarters)