I purchased the following items over the last 6 weeks or so:
1. Replacement batteries (2 pcs) for my APC RS 1000 Back-UPS for Rs. 2024 (including 12.5% tax) from Rainbow Solutions, P-99 Lake Terrace, 1st Floor, Kolkata 700029, Phone No.40082250. Their actual sales office is at 22/1/1/16 Monoharpukur Rd (behind Deshapriya Park).
2. Transcend JetFlash V30 2 GB Pendrive for Rs. 340 from Subham Infotech, 4 Biplabi Anukul Chandra St, (Chandni Chawk), Kolkata 700072.
3. Nokia 3120 Classic 3G Mobile phone with dual camera (2M pixels) including USB data cable and 1 GB extra memory (Total Rs. 8000, including tax) from Amber Telecom, Chandni Chawk, Kolkata 700072.
About the Nokia 3120 Classic 3G Mobile phone, I found a lot of gripe on the internet towards the poor battery backup time. Since I am using it as my second mobile phone and the usage is not too much, I find it adequate for my purposes. If any one is aware of any other issue about this model, I shall appreciate an update. Thanks.