Ugaadi pachchadi which is the special recipe prepared only on Ugaadi - Telugu New's day - is not prepared with neem leaves but is prepared with neem flowers.
The special recipe contains shadruchulu as it is prepared with a combination of 6 tastes. The ingredients used are from the new yields. As you see neem flowers during this spring season (though hot summer now due to global warming), these are good for health and are used in Ugaadi pachchadi. The other ingredients of the pachchadi include jaggery (gur) made of the new yield of sugarcane, tamarind extract, mango cut into small pieces, salt, red chilli powder (or pepper powder). These are the 6 main ingredients and other ingredients which are optional include banana pieces, cut dry fruits like cashew, raisins etc.
Thanks & Regards