Prior to the invention of cement, lime mortar was the predominant building material for the monumental buildings in India. Use of lime mortar in conservation works is essential as it is the original building material and, if well prepared, lime mortar survives for centuries as it returns to its natural state of limestone. The volume relays the knowledge accumulated through training workshops-attended by conservation professionals from across India-to engineers, conservation professionals, and architects in an illustrated manner. It conveys the need to use lime mortar for conservation, establishes best practice and lists specifications for different circumstances.