The Purna-Kalasha is considered a symbol of abundance and “source of life” in the Vedas. Purna-Kumbha is preeminently a Vedic motif, known from the time of Rigveda. It is also called Soma-Kalasha, Chandra-Kalasha, Indra-Kumbha, Purnaghata, Purna-Virakamsya, Bhadra ghata, or Mangala ghata. It is referred to as “overflowing full vase” (purno-asya Kalasha) in the Vedas.
Michael Leach It is quite common for conquerors to take down temples & use them for building their own. Christians in Europe, Spaniards in Mexico, for example. The same thing was done in this mosque. Some columns in the interior of Ahmedabad’s Friday Mosque have Sanskrit text on them. As you enter the main section, the black stone you step on is the base of an upside down Jain idol. Unaware, you are desecrating an idol from a pre existing religion. This mosque is interesting & should be seen as there is not much left of Old Ahmedabad.