Rico Appliances Pvt.ltd — non compliance of warranty clause/complaint, unethical behaviour, selling substandard items

I have purchased The RICO mixer grinder with the following details.
Serial_No :MG828 HA[protected]
Product Name :Mixer Grinders - MG 828
Purchase Date :12 July, 2017
PurchaseFrom :INCS KOCHI
CustomerName :BABU A K
Within / Outside Warranty :WITH IN WARRANTY
During the usage it has been observed that each jar become defective within 02-03 months due to material/design failure. During the first week o[censored]sage one jar coupling thread damaged and the damaged coupling replaced. Further within 01 year all 03 jars blade/coupling become damaged one by one as below:-
1. Main Jar:- during the usage the blade broken .
2. Juicer Jar: - The plastic coupling came out form the metal attachment moulded.
3. Small jar: - The coupling -blade attachment rotating freely due to tread damage
The jars can be repaired by replacing the coupling / blade attachment.
I have requested for dispatch the spares for repairs after attaching the photographs of damage on 13- 08-18 by mail and replied to contact local service person. When I contacted he told to forward the relevant documents and photo graphs of damages by whats App and forwarded the same on 30-08-18. There was no reply/response again send a reminder on 13-09-18 and spoken again on 14-09-18 and he has asked to contact Mumbai office for solution. I again send mail to Rico customer service Mumbai on[protected]. Thereafter made many telephone calls and promised several times to send the spares but there was no action. Hence again send mails on 27 Sep 18, 06 Oct 18 and 17 Oct 18 and there was no response, so I made many phone calls and initially promised to despatch and no actions, and not even picking the phone. Then I called from different numbers and finally they told again to contact local service person and will do the necessary action. I again contacted him first he told to send the address and promised to despatch the spares and there was no action. When further contacted he told to forward the all relevant documents and photos again and I forwarded thee same but no response/action. Further I send reminder and tried to contact by telephone many times and the call was not answered.
Rico service Mumbai person NO. [protected]
Local service person Mr. Shibu David [protected]