Retrieves details about an Indian bank branch using its IFSC code (e.g. Bank Name, Branch, Address, Contact, and features like UPI, RTGS, NEFT, IMPS support). Uses caching to optimize response times.

Retrieves location details for an Indian Postal PIN code (e.g., Post Office name, Block, Circle, District, State). Uses caching to optimize response times.

Validates the structure, format, and checksum of a GSTIN (Goods and Services Tax Identification Number), and extracts the State, PAN, Entity Type, and Checksum status.

Validates the format and structure of a Permanent Account Number (PAN), and extracts the legal entity/holder type (e.g., Individual, Company, Firm, Trust).

Checks if a given Indian PIN code is serviceable based on lists of allowed states or districts. Extremely useful for e-commerce checkout and shipping verification.

Calculates GST (CGST, SGST, IGST) breakdown based on transaction amount, GST rate, seller's GSTIN and buyer's location/state. Determines inter-state vs intra-state routing automatically.