Clean and wash methi/fenugreek leaves in a big pot of water/in a salad spinner, 3 - 4 times until you will not see dirt in them. Once dry, you can chop them finely.
In a bowl, add wheat flour, sesame seeds, ginger, garlic, chillies, turmeric, red chili powder, coriander powder, cumin powder, garam masala, carom seeds, and salt.
Add in some dahi and oil.
Add methi leaves into the mixture. Mix them well with your hands and it will create some moisture in the flour mixture.
Add water, little at a time, until a soft dough is formed. You can add 1 to 2 tbsp more water if required. Keep kneading for 3-5 minutes.
Once the dough is formed, spread a few drops of oil, cover the bowl, and keep aside for 10 minutes.
Knead the dough for 1 minute, divide the dough, and make 10 equal balls.
Meanwhile, preheat a griddle on medium high heat( between 6-7). If you are using an iron griddle, the temperature should be medium. Make sure you are not heating it for too long or short.
Take one ball, dust some flour onto it, and roll it into a round shape around 6-7 inches. You can dust some more flour if required.
Once the griddle is hot, transfer the paratha onto it.
Spread some oil over the paratha. Let it cook till you see small bubbles on the top and flip to the other side(oil side) of the paratha and let it cook till you see light brown spots. Spread some more oil on the top.
Flip the paratha again and cook the half cooked side by pressing it gently while cooking. Once you see brown spots, remove it from the griddle and serve.
You can roll and cook rest of the parathas in the same manner.