Before proceeding with mining, do note that cryptocurrency is not legal in India. Don't be confused that it is illegal, it simply implies that cryptocurrency isn't legalized yet. But blockchain system is legal which is the backbone of cryptocurrency.
Coming to hardware, there is no hard fast rule that a 'particular' set of hardware is better for mining. It all depends on your budget. If you understand some details of the mining procedure, then you will have a broader idea about which hardware configuration is suitable for you.
The mining procedure is based on hash rate. Hash rate is the number of calculations that your hardware can perform every second. This is basically how your hardware tries to solve the mathematical problem in a given blockchain. It is calculated in megahashes (MH)/gigahashes (GH)/terahashes(TH). Your average computer can calculate these hashes but at a very low rate. You need to up your calculation using a good Graphics Processing Unit (GPU), Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuits (ASIC).
The two major players in GPU sales are ATI and NVIDIA. The higher the capacity of the GPU, the faster is the mining. But since there is an exponential increase in the competition of mining, GPU mining is outdated or used very rarely.
Field Programmable Gate Array (FPGA) is nothing but customized integrated circuits that are designed for mining. The chips are brought in bulk and they are customized to do the mining process. Single customized FFGA has more processing speed than a single GPU and hence they are assembled in bulk together to produce higher calculation rates.
Application Specific Integrated Circuits (ASIC) are designed solemnly to mine bitcoins. They have very high calculation rates (up to 2 terahashes per second, whereas a GPU/FFGA can calculate 500 - 1000 megahashes per second). They are also very low in power consumption but are expensive.
With the above data, calculate your budget and get a good ASIC and download a good mining software. If you are mining for the first time, I would suggest you join a pool for mining instead of individual mining.
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Dr. V. Shashikanth