It is believed the blowing shankha destroys enemies and also pleases goddess Lakshmi. As per Dharma Grantha’s Moti Shankha and Dakshinavarti Shankha are two very important shankha’s.
As per Bhagwat Gita, Mahabharat had begun after lord Krishna along with other warriors had blown a divya shankha.
Lord Krishna had blown the Panchjanya shankha, Yudhishthir blew Anant Vijay, Bheem Pondrik, Arjuna Devdatt, Nakul Sughosh and Sahdev had blown Manupushpak shankha and they all had won the battle.
Not just for religion, blowing shankha has scientific and ayurvedic benefits also. As per them, blowing shankha during puja has benefits on our lungs. This is because for blowing a shankha pure air reaches the lungs and impure air comes out. This makes the lungs strong.
Blowing shankha also cures diseases of intestines.
The sound of shankha blowing not just helps the person who is blowing it, but also others who are listening to that sound. It is believed that the sound of shankha blowing removes the negative energies from people.