GUPTA SS. EXCEPTIONALLY HEAVY RAINS IN AND AROUND PATNA CITY IN SEPTEMBER 1967 : A CASE STUDY OF ID-TROPOSPHERIC INTERACTION BETWEEN AN EASTERLY WAVE AD A WESTERLY WAVE . MAUSAM [Internet]. 1971Oct.1 [cited 2024Nov.23];22(4):599-600. Available from: http://103.215.208.102/index.php/MAUSAM/article/view/5024