Most Indian parents are known to discourage their children by making such unwarranted comparisons. Dont worry about it, we all sail in the same boat. Meanwhile, it is obvious from your letter that you have already gone into depression which could be rated as severe. Please consult a psychiatrist in person. He would be able to help you get out of your problem. You will once again start laughing at yourself and at life in general. You will get back your concentration, and your self confidence too. Once you are out of depression, the reaction of potential employers will also become positive towards you; they all want self confident smiling employees, which at present, I understand, is a little difficult for you.
Next Steps
Its the question of a fortnight or so for you to start smiling again. Go ahead and see a psychiatrist