Squeeze juice from the lemons. Grind tulsi leaves and elaichi along with lemon juice to make a fine paste.
Boil water with jaggery in it. Once the water comes to boil and the jaggery starts to dissolve turn off the gas. When the water turns lukewarm, then add the paste to the jaggery dissolved water. Stir well so that the paste and water are inseparable then cover it and leave aside for 2 hours.
After proper cooling strain Tulsi Sudha. Tasty Tulsi Sudha is now ready. During summers drink Tulsi Sudha at a low or normal temperature and drink it as tea during winters. One can enjoy Tulsi Sudha drink upto 15 days if stored in the fridge.