बड़खल झील का निर्माण कब हुआ था ? - When was the Badkhal Lake formed? - BadKhal Jheel Ka Nirmann Kab Hua Tha ? Haryana Gk in hindi, General Studies 1960 Ee. question answers in hindi pdf 1943 Ee. questions in hindi, Know About 1947 Ee. Haryana Gk online test Haryana Gk notes in hindi quiz book 1955 Ee.