ure ls ▁at ▁various ▁national ▁and ▁state ▁level ▁compet itions . ▁The ▁students ▁are ▁involved ▁in ▁a ▁ple th ora ▁of ▁co - curr icular ▁and ▁sports ▁activities , ▁which ▁act ively ▁supported ▁by ▁the ▁teachers . ▁ ▁A E CS ▁Hy der abad ▁The ▁school ▁is ▁located ▁at ▁D AE ▁col ony ▁near ▁EC IL . ▁A E CS ▁Hy der abad ▁was ▁established ▁in ▁ 1 9 7 0 ▁for ▁children ▁of ▁employees ▁of ▁N FC , ▁EC IL ▁and ▁the ▁National ▁Bal lo on ▁Fac ility . ▁The ▁school ▁has ▁expanded ▁to : ▁ ▁School ▁ 1 ▁at ▁D AE ▁col ony ▁( the ▁original ▁school ) ▁ ▁School ▁ 2 , ▁also ▁at ▁D AE ▁Col ony ▁ ▁School ▁ 3 ▁near ▁T IF R ▁ ▁School ▁ 4 ▁in ▁A . S . ▁R ao ▁Nag ar ▁School ▁ 3 ▁( a . k . a . ▁A E CS - 3 , ▁Hy der abad ) ▁started ▁with ▁the ▁ 1 9 8 5 - 8 6 ▁academic ▁year , ▁and ▁the ▁first ▁batch ▁of ▁ 1 0 th ▁grade ▁students ▁passed ▁out ▁in ▁ 1 9 8 9 . ▁ ▁Currently ▁only ▁School ▁ 1 ▁and ▁ 2 , ▁both ▁at ▁D AE ▁col ony ▁are ▁functional , ▁School ▁ 3 ▁( T IF R ) ▁and ▁School ▁ 4 ▁( A . S . R ao ▁Nag ar ) ▁have ▁been ▁converted ▁to ▁EC IL ▁and ▁another ▁private ▁organization . ▁ ▁The ▁ 1 1