Is a 1950 ford sedan battery a positive or a negative ground? Why are gram-positive bacteria purple in colour while gram negative are red? Gram-positive bacteria have a thick mesh-like cell wall which is  made up of peptidoglycan (50-90% of cell wall), which stains  purple.
If you talk about best schools in delhi ncr â Shri Ram School and DPS schools chains dominate top rankings. However Amity School is also considered in top schools. Being from Gurgaon and an alumni of DPS SECTOR 45 I can say DPS Sector 45, Sushant Lok are still the best schools in gurgaon particularity.
The 2012 Hindustan Times-C fore Top Schools Survey gave scores to each school across 14 different parameters, from academic rigour to sports. Here is a list of schools ranked in the Top Ten in west Delhi. 1 Delhi Public School, Dwarka. Students are encouraged to develop interests in public speaking, quizzing and environmental issues. The school also has vast play areas for cricket, football, basketball, tennis and badminton.