Crompton Greaves / Cgglobal.com — poor product quality

Address:

Chennai, Tamil Nadu, 600042

I purchased a high speed fan on April 1st 2018. Within four months this is the second time the fan speed has reduced drastically. Not sure if crompton greaves quality has been deteriorated so badly.
First time they assigned some one from the service centre within 30 days of purchase and they replaced some parts post which there was some increase in speed
However it did not last long and the issue reoccured again
Not sure if I took a right decision of purchasing crompton