He initiated tests to establish the quality of the indigenous coal . उसने देशी कोयले की गुणवत्ता जांच के लिए कुछ टैस्ट निर्धारित किये .
2.
During this period , the share of indigenous coal in total consumption was increasing . इस अवधि में कुल खपत में स्वदेशी कोयले का हिस्सा बढ़ता ही जा रहा था .
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