Hello RaghavendraKatti and welcome to PN.
You have an excellent photo of a golden orb spider (Genus nephilia, probably Nephilia maculata). The large one is the female who owns the web and the small one on the right of her is probably a male. Its a little hard to be certain as the image is too small to be clear. The males are much smaller and hang around the edge of the web for suitable times to grab some morsels of food and to mate.
Your other species should be submitted as separate spottings so that there is no confusion about which species the comments are directed to.
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