Block deals happening today, so buyers and sellers are not currently known:

Auto ancillary firm Motherson Sumi is seeing some action today, seeing 77.6 lakh shares change hands in one block and 74.9 lakh shares change hands in the other. At its recent analyst meet, the management said that it is on course to achieve its ambitious 2020 revenue target of $18 bn (vs. $8 bn currently).

Yes Bank's 48.8 lakh shares changed hands at Rs 312.3 per share in a single block on the BSE.

Vakrangee has 14 lakh shares change hands at Rs 745 per share in a block on the BSE. The company saw strong net profit growth in the most recent quarter, although EBITDA margins fell slightly sequentially. 

Bharti Infratel has 25.7 lakh shares change hands at Rs 374 per share in two blocks on BSE.

Sadbhav Infrastructure Project has 27 lakh shares change hands in a single block.

Real estate firm Unitech has seen 13.2 lakh shares change hands in multiple blocks on the NSE. The government's corporate affairs ministry is moving the court to take control of the firm. 

Indoco Remedies has 14 lakh shares change hands at Rs 266.25-267.7 per share in two blocks on the BSE.