Abdul Kalam biggest regret of life in hindi

After watching this video you will able to know about great thinking of Kalam Sir. Apj kalam is inspiration for all of indians, Apj done some fantastic work in his field,Apj abdul kalam life history will motivate you to keep your chin up always,life of abdul kalam is inspiration and by this video you will get abdul kalam information about his great thinking, i hope you all like Dr apj abdul kalam thoughts