मंद्रध्वनि मतलब [सं-स्त्री.] - गरजने की आवाज़; गरजन; गंभीर ध्वनि।
Here is meaning of Mandra Dhwani in hindi. Get definition and hindi meaning of Mandra Dhwani. What is Hindi definition and meaning of Mandra Dhwani ? (hindi matlab - arth kya hai?).