Tejas Inverters — Defective Inverters

I have a complaint against Tejas Inverters. Before detailing the complaint, hereunder are the details of the purchase made by me:

Product Purchased: Electric Inverters
Brand: Tejas Inverters
Sold by (dealer): Universal Marketing
Representative from Universal Marketing: Mr. Rajan (+91 [protected])
Details of product: Three Nos. 1.5 KVA (24 Volts) Electric Inverters along with 6 batteries
Bill No: 019
Bill Dt: April 24, 2009
Bill Amount: Rs. 93, 600/- (including 4% VAT)
Payment Mode: Cheques - Two Cheques drawn on ICICI Bank, Nungambakkam Branch
Details of Cheques: Chq. No: 376880 dt. April 19, 2009 for Rs. 3, 000/- Chq. No: 376883 dt. April 29, 2009 for Rs. 91, 600/- (Rs. 1000/- was for installation)
Warranty Period: 1 year (for both Inverter and Batteries)

My Details:
Name: I Praveen Kumar
Contact Mobile: +[protected]
Address: 'Madhuban', Plot No. 12, Customs & Excise Colony, Thoraipakkam, Chennai 600 096.

(If required I can either fax or scan and send the invoice along with warranty card)

Complaint:

On the second day after installation, when the power went, it was found to our horror that the back up was not even coming for an hour and that too for a load which was very less as compared to the prescribed load (or maximum load possible for a 1.5 KVA inverter). We called up the salesman (Mr. Rajan) as the number given in the warranty card for service was not being responded to.

We had to call him about 25 times before he sent a person. That person checked and stated that there was a problem with the batteries. They said they will change it. But it was not done for a week. We were continuously calling the salesman (he was not willing to give any other contact number) and again today one more person came and said the same thing. When we asked to be put on to somebody senior he refused saying that he does not have numbers of anybody - this is important that the salesman and the serviceman both have stated that they do not have the contact numbers of anybody. The serviceman said he will 'see' what can be done and just walked away.

We visited their office personally and there was a lone receptionist who refused to give any numbers and said that we should leave our number and go and as and when 'anybody comes' she will ask them to call

In the absence of any contacts and no one to redress this issue we fear that we have been duped / cheated into buying sub-standard products.

We are asking for the following compensation:
Full replacement of all units (inverters and batteries)
Testing of load and capacity by a third party (to be paid by Universal)
Monetary Compensation for this period when the products were not working (whatever way there is to calculate that damage)
MOST IMPORTANT: They should be made to carry a prominent message in all their communications (like for example they participate a lot in exhibitions to sell the products) which states that their products cannot be depended on and that consumers should fully test the products before making any payments.