Explanation:

Ambala has very high grade limestone with an average of 93 percent Calcium Carbonate and low in Magnesium Oxide.The estimated reserve is about 6 lakh tonnes. A band of thinly bedded Sabathu limestone, about 5 metre thick, occurs at Barun in Naraingarh tehsil. A band of limestone, about 20 metre thick and about 1.2 kilometre long occurs at Kharag. The total reserve in the area is estimated at 50 lakh tonnes of good quality limestone.The largest deposit of this area occurs at Ramsar and Sherla (Naraingarh tehsil). The limestone is well bedded about 30 metre thick and extends for about 2.4 kilometres. The reserve is estimated at about 120 lakh tonnes. The limestone belt extends to Malla (Kalka tehsil), Jonpur, Dabsu, Ambri and Jabial in Naraingarh tehsil.