Hi Manasa Devi garu, I am giving a solution with some knowledge of fencing so that you can work out at your own and bargain with labour.
If you are going for fruit tree plantation/commercial crops/ perennial/annual, then you need to protect it from animals like Boars and Porcupines and even human beings.
you have simple barbed fencing solution for which you need to put around 205 poles to cover around 1867 feet(Perimeter of 5 acre land if the land is of square/rectangular shape)
cost of each stone pillar(Kadi) is around Rs.200.
You need to purchase required cement and sand.
Need to pay to Labour Rs 500/person/day.(Atleast 4 persons must be employed at a time)
Cost of barbed fencing wire is Rs.55/kg. and each kg can be run for a length of 25 feet. and you need to have 5 rows of barbed fence between poles.
The above mentioned cost of fencing varies with labour and material cost.
Live fencing can be planted during rainy season so as they can stabilize with rain water. You can use Glericidia sepum cuttings from road side plants or contact ICRISAT office where they give you some cuttings. you can cut 1 feet length cuttings from above said trees and use for fencing.