It's expected of candidates seeking postings in HR, irrespective of scales, cadre, levels that they should have minimum working knowledge of salary structure, components, rates for various levels & job description.
I'm happy to say citeHR provides ample opportunity to learn nuances of this area and it is upto the freshers to freely pick up those knowledge.
All these info are readily made available from the links indicated on your screen, click on those links & learn.
Any specific doubts can be raised here.
As per your request Normally Below given details are follow and more other components also follow based on the company.
HRA ( 40 to 50% metro city 50% other citys 405)
Bonus (8.33% On Basic)
projecet Allowances ( Adjustment amount add in this Component)
Above all comes under Gross Salary : (PF ESI,PT )After deduction from gross Comes Net Salary.