Hey guys, Just want to update! the Issue is resolved by the dell technician, it seems that the screws used to place the touchpad are locked tightly and so the press clicks and the auto select option is happening randomly. The technician just loosened the screw a bit and voila!! The laptop is working as it should.
Facing THE All Too Often Touch Pad issue Hi Firstly, I'm very excited get my new Inspiron15 5510 model and after the delivery in late morning I've felt very good seeing the Laptop as this model has a sleek design, features and all. And it didn't take long to break the mood, with in just 2hr of usage the problem starts by the erratic movement of mouse. Even though I can still navigate through the screen using the touchpad, it's useless as it can't select any app or icon there is, sometimes it's in an indefinite AUTO-SELECT mode even if I don't touch the touchpad. This problem used to happen every 10 minutes at start and remain like that for a good 5-10 minutes too, but by the evening the mouse wouldn't respond or revert back again like before and remained like that even until now(delivery happened a day before), I've checked the online and found that many were facing the same problem as me with the laptop and after going through the online diagnostics in the DELL support, they have issued me a free replacement. But I'm very dissatisfied with the whole thing about the new Laptop. Now I had to resort to using a external mouse to use my Laptop, I've talked to technical support team on a call and had a chat with whats'app also about the issue and I've asked for a new replacement, they just forwarded my complaint. I'm still waiting for the response as they said it'll take 1-2 business days. I've seen the same issue with many others online, the DELL must look into this seriously as these happenings are occurring often and try to solve/check for this  type of hardware defects before they dispatched them. Just want to post this because I've seen others with the same issue and felt that I need some company with the issue, as it is not easy for me or some people to buy a laptop worth 68k and got to deal with a defective product after the delivery, it's a very bad feeling just to say.  
TOUCHPAD issue with DELL Laptop (Inspiron 15 5510)