Tin sheded and bounded godown on suit property

Respected sir / madam , my father purchase a land with bamboo structure in the year 1996 with my maternal grand mother about 1 katha 12 chattack at north 24 pgs , west bengal. which also registered . then my maternal uncle & my father both are in the position and carrying seperate business in part of the property. in the year 2007 my maternal uncle , my maternal grand mother , my mother's sister's they filed a title suit ( for declaration , partition & injunction)against the seller of the property. my maternal uncle also join my father & mother as plaintiff . my father & mother did not know about the case matter sign on plaint on good faith basis . original deed also in hands of my maternal uncle . my father construct a tin sheded & bounded shop with oral consent of my maternal uncle for godown purpouse on my father share portion . after completion of construction work my maternal uncle raise objection to construct a godown., other side till now haven't any objection . injunction order is not in there . my maternal uncle & my father both are plaintiff . now my maternal uncle also filed a gd before police station for illegal construction . and also send lawyear notice in the name of my fathe , my brother and in my name also for join & construct illgal construction . in law year notice they also warned us to demolish construction within 30 days otherwise civil and criminal case may be initiated. now my question is that from above mentioned circumstances how to get relief & intact our constructed godown ? plz help me. regards biswajit bhattacharya