NSK International School, Thumpamon One of The Best Schools In Pathanamthitta NSK International School is set out to fill in a void. A void created by the absence of quality schooling options in the region, schools that are preoccupied by syllabii, examinations and 'rank' abound. But hardly any around that passionately addresses the real issues and larger perspectives of education. Ideal class size and effective Student Teacher ratio. Our Student Teacher Ratio is 8 :