Upvote:5
First, you will need to declare, before leaving the UK, that you hold more than 10000β€ in travellers' checks and that you are leaving with them
HMRC state :
You must declare cash of Β£10,000 or more to UK customs if youβre carrying it between Great Britain (England, Scotland and Wales) and a country outside the UK.
Which includes travellers cheques
For India, the Customs Guide for Travellers state :
Any person can bring into India from a place outside India foreign exchange without any limit. However, declaration of foreign exchange/currency is required to be made in the prescribed Currency Declaration Form in the following cases:
- (a) Where the value of foreign currency notes exceeds US$ 5,000/- or equivalent
- (b) Where the aggregate value of foreign exchange (in the form of currency notes, bank notes, traveler cheques etc.) exceeds US$ 10,000/- or its equivalent
You will need to take the red customs channel on arrival at Mumbai and declare accordingly
To cash them, you can cash them at any location mentionned in the Traveleres Cheques Exchange Locator