Will vitamin d deficiency cause low calicium level in blood?

Yes. Severe Vitamin D deficiency(rarely seen in developed countries) can cause hypocalcemia. 25(OH)- D levels of 4.4 ng/ml (11 mol/L) or lower can cause hypocalcemia. Some of other causes of hypocalcemia include intestinal malabsorption, alcoholism, CKD, diuretics and hypoparathyroidism. Check ionized calcium level to confirm it is low.