Heat the oil for 40 seconds in microwave.
Add the runner beans, salt, achar masala and lemon juice a a bowl. Mix all together. Add in the hot oil and mix. Let it cool and transfer in a jar. Store in air tight jar and refrigerate. This pickle will keep for 2 to 3 weeks in fridge. Enjoy with paratha, puti, roti, naan or you can have an achari sandwich.