Question: query regarding premature fruit dropping of pumpkin. 
Answer: please spray borax 5-6 gram/liter of water 3 times at 4-5 days interval i the evening time in the absence of rain and along with borax please spray one vitamins- mohaphol 2ml/liter of water or planofix 1ml/4 litewr of water  once in flowering stage and once in fruit setting stage in the evening time in the absence of rain.