Land Suggestion that are In parts,

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I need suggestion from experts for my personal issue. We have Barani land gift from forefathers (after there death) in Jhelum area. That are small parts of lands and in difference 30 to 40 places as total 500 Kanals. We are four family who have rights to share this land. Other two members are not willing to divided it in big parts and wish to four parts of each land peaces even its small parts of one kanal. They are living there and enjoyed its income. But we wish to big parts even from bad side of land so control it batter. In the other hand we are not wiling to kot Khari chaker also for this land. Is there are any suggestion that we apart land from others in easy way and own control? so next we can handle it easily by our self? What are process to divided it in regal way? so next will not interfere in our part of land.