Grind poha into a very fine powder and take out in a bowl.
Mix besan with powdered poha.
Pour water in a pan and also add salt in it.
When water begins to boil, switch off the heat.
Add besan poha mixture in water gradually and keep mixing. It will look like a lumpsy dough.
Cover the pan with a lid just for 5 minutes.
After the said time, take out the lumpsy dough in a bowl.
Add corn flour in it and knead into a normal dough. Do grease your hands before kneading the dough. Remember, don't add additional water for kneading. If finding difficulty in binding the dough, again grease your hands with oil and it works.
Now take a small pinch of dough and roll it round between your palms.
Further roll it again into a long string giving it a shape of kurkure as shown in picture below.
Likewise make such shape out of the entire dough.