Jio — network and data speed

Address:

No:54 Gandhi street Athipattu, Near Perumal kovil, Chennai, Tamil Nadu, 600120

Were 2 years iam using a jio network till 2018 September iam getting a speed jio but after September till iam getting yaa veryyy bad network or alsoo very very slow data speed even I could not able to use a what's app also and unable to make a call were the voice Is breaking and if I make a call in Airtel it's good so please solve my problem and give a solution this problem is happening only in my area athipattu, Chennai-600120, Thiruvallur district but this problem not come in other places and the important thing is the single tower near my house just 100meter something