Heat oil in a small saucepan over medium heat. Add the mustard and cumin seeds and once the seeds to splutter, add the turmeric, <g class="gr_ gr_52 gr-alert gr_gramm gr_disable_anim_appear Punctuation only-ins replaceWithoutSep" id="52" data-gr-id="52">asafoetida</g> and salt.
Remove the pan from heat and add the lemon juice and let the mixture cool.
Just before serving, arrange the radishes and the chopped peanuts in a bowl, pour the dressing over the top and mix thoroughly. Serve right away!!