Roughly Rs 80,000-2,00,000 for a small counter (tools Rs 15,000-40,000, spare-parts inventory Rs 20,000-50,000, shop deposit and licence) per IIFL Finance's cost breakdown; a doorstep-only start using your own two-wheeler can begin nearer the lower end. PM Mudra Shishu loans cover up to Rs 50,000 collateral-free, and PMEGP can subsidise 15-35% of project cost (up to Rs 20 lakh for new service-sector units).
No independently verified industry-wide earnings figure exists for individual repair technicians in India, so do not trust round numbers quoted elsewhere online - income depends entirely on repair volume and your parts margin. Treat the first 2-3 months as a skill and reputation-building phase rather than an income phase.
Figures are quoted from the sources listed under Useful resources on this page. Check them against current local prices before you rely on them.