Place Where Tulsi Did Penance

Tulsi gave up all her royal comfort and went to Badrinath to perform penance to gain Vishnu as her husband.
http://twininformation.blogspot.com/

Why are tulsi leaves used while offering naivēdya

http://www.forumforhinduawakening.org/understanding/why-are-tulsi-leaves-used-while-offering-naivedya

Quantum

http://ajitvadakayil.blogspot.in/2011/08/quantum-plant-tulsi-capt-ajit-vadakayil.html