The first cover was posted from Gujarat, a westernmost state of India. Many thanks to Shrikant Modh!
The se-tenant stamps belong to the "Whales" series, an India-Philippines joint issue, released on 16 November 2009. Gangetic dolphin is a freshwater dolphin, distributed in the Ganges-Brahmaputra-Meghna and Karnaphuli river system of India, Nepal and Bangladesh. The species has been facing severe threat as its global population decline. It has been assessed that at present the species has not more than 2,500 individuals throughout its distributional ranges. The whale shark, also known as Butanding in the Philippines, is a slow moving filter feeding shark, the largest living fish species. The largest confirmed individual had a length of 12.65 metres (41.50 ft) and a weight of more than 21.5 tonnes (47,000 lb), but unconfirmed claims report considerably larger whale sharks.
Next is a lovely FDC posted from District Kullu, in the state of Himachal Pradesh, India. Thank you so much, Jeevan Jyoti!
In addition, Jyoti also sent me a set of mint stamps from the "Indigenous horses of India" series, issued on 09 November 2009. Thanks again!