This type of complaints ,mostly from Bangalore ,must be related with IT industry ,you are suffering from dryness (computer Vision syndrome ),it is due to overuse of smartphone ,laptop & watching TV without blinking & without break, you should have normal blinking while working on computer & use lubricating eye drops 4-5 times daily to avoid severe dryness.you should also consult ophthmologist for refraction if any & use antiglare glass if you are IT professionals .For black circles below eyes, find the cause whether it is due to night time awakening or just it is effect of lights (Tyndall effects) or it is hereditary.
Next Steps
Take plenty of fluids, sleep at night at right time, apply cetaphil moisturing cream around eyes during daytime & Fixderma under eye cream at night on dark circle at night for 3 months, if no improvement consult dermatologist for dark circles,with regards