Hello there are many causes for redness of eyes mainly allergy, infection, inflammation and dry eyes etc. 1. Redness + itching: allergy 2. Redness + pain + watering + decreased vision: infection 3. Redness + pain: inflammation 4. Redness foreign body sensation: dryness kindly share photos of eye so that i may guide you better

It seems to be case of conjunctivitis ,you can put some antibiotic eye drops 5-6 times a day along with lubricating eye drops 4-5 times at interval of half an hour between two drops ( vigamox eye drops & genteal eye drops).for 3-4 days if don't get relief you can consult ophthmologist ,there is many  government hospital in Delhi where you can consult in eye department outdoor.

You should see an Ophthalmologist immediately

Hi..... Don't rub your eyes, even though they may be itchy. Rubbing your eyes can make your symptoms worse.Place a cool compress over your eyes. Wetting a flannel with cool water and holding it over your eyes will help ease your symptoms.Avoid exposure to the allergen, if possible..... It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your ophthalmologist.... I sincerely hope that helps.